HANDWRITTEN NOTES

Tuesday, September 27, 2022

two parallel conductors carrying current in opposite direction will exert on each other


 

-A solenoid of inductance 250 mH and resistance is connected to a battery. The time taken for the magnetic energy to reach (1/4th) of its maximum value is

-A solenoid of inductance 250 mH and resistance is connected to a battery. The time taken for the magnetic energy to reach (1/4th) of its maximum value is



An ammeter is obtained by shunting a 30 Ω galvanometer with a 30Ω resistance. What additional shunt should be connected across it to double the range?

 


An ammeter is obtained by shunting a 30 Ω galvanometer with a 30Ω resistance. What additional shunt should be connected across it to double the range?

when a multiplier is added to an existing voltmeter for extending its range its electromagnetic damping

 


when a multiplier is added to an existing voltmeter for extending its range its electromagnetic damping

The Rotor Input When Rotor Copper Loss In An Induction Motor Is 600W And Slip Is 3% Is

 The Rotor Input When Rotor Copper Loss In An Induction Motor Is 600W And Slip Is 3% Is


A current of i=6+10sin(100πt)+20sin(200πt) is flowing through a series combination of a PMMC and moving iron instrument. Ratio of the two currents as registered by the m.i and Pmmc metre

 


A current of i=6+10sin(100πt)+20sin(200πt) is flowing through a series combination of a PMMC and moving iron instrument. Ratio of the two currents as registered by the m.i and Pmmc metre

An AC meter of resistance Rm and reactance Xm has been connected in series with a resistance Rs. A shunt of impedance (Rsh + jXsh ) is applied in parallel to the existing combination of meter and Rs. The current division across the two branches will be independent of frequency when

 An AC meter of resistance Rm and reactance Xm has been connected in series with a resistance Rs. A shunt of impedance (Rsh + jXsh ) is applied in parallel to the existing combination of meter and Rs. The current division across the two branches will be independent of frequency when


a 20 microfarad capacitor is connected across an ideal voltage source the current in the capacitor is

 

about this video-

In this video I explain you a question which was asked in SSC Je 2012 the question is - a 20 microfarad capacitor is connected across an ideal voltage source the current in the capacitor is



If the angular frequency of an alternating voltage is \omegaω, then the angular frequency of instantaneous real power absorbed in an ac circuit is

 

Angular Frequency Of Alternating Voltage Is ω Then Angular Frequency Of Instantaneous Real Power


about this video-
in this video I explain you a question which was asked in SSC Je 2013 the question is-If the angular frequency of an alternating voltage is \omegaω, then the angular frequency of instantaneous real power absorbed in an ac circuit is


the wave Shape Of Current Flowing Through The Inductor Is then the wave Shape Of Voltage drop across the inductor is

 

The wave Shape Of Current Flowing Through The Inductor Is Then The Wave Shape Of Voltage Drop Across


about this video-
in this video I explain you a question which was asked in SSC Je 2012 the question is- the  wave Shape Of Current Flowing Through The Inductor Is then the wave Shape Of Voltage drop across the inductor is


Maximum Temperature Limit For class F Insulation Is

 Maximum Temperature Limit For class F Insulation Is 



about this video-in this video I explain you a question which was asked in SSC Je 2012 the question is - maximum temperature limit for class- F insulation is

The voltage wave v = Vm sin⁡(ωt − 15°) volt is applied across an ac circuit. If the current leads the voltage by 10° and the maximum value of current is Im, then the equation of current is

 

about this video-
in this video I explain you a question which was asked in SSC Je 2013 the question is-The voltage wave v = Vm sin⁡(ωt − 15°) volt is applied across an ac circuit. If the current leads the voltage by 10° and the maximum value of current is Im, then the equation of current is


Monday, September 26, 2022

the most common type of unsymmetrical fault in three phase system

 

about this video- in this video I explain you a  question which was asked in SSC Je 2008 the question is- the most common type of unsymmetrical fault in three phase system


A 10 μF and a 20μF capacitor are in series. The combination is supplied at 150 V from a sinusoidal voltage source. The voltage across the 20μF capacitor is then

 

about this video-
in this video I explain you a question which was asked in SSC Je 2012 the question is-
A 10 μF and a 20μF capacitor are in series. The combination is supplied at 150 V from a sinusoidal voltage source. The voltage across the 20μF capacitor is then


Percentage Slip In Case Of Synchronous Motor || What Is Slip In Synchronous Motor |

Percentage Slip In Case Of Synchronous Motor || What Is Slip In Synchronous Motor ||

about this video-
in this video I will explain you how to calculate percentage slip in case of synchronous motor.and a question which was asked in SSC Je 2007 the question is - the percentage slip in case of synchronous motor is

the current drawn by Tungsten filament lamp is measured by an ammeter the ammeter reading under steady state condition will be _________ the ametre reading when the supply is switched off.

 

Current Drawn By Tungsten Filament Lamp Is Measure By Ammeter Reading Under Steady State Condition

about this video-
in this video I will explain you a question which was asked in SSC Je 2014 the question is
the current drawn by Tungsten filament lamp is measured by an ammeter the ammeter reading under steady state condition will be _________ the ametre reading when the supply is switched off.


An Electric Heater Drawa 1000 Watts From A 250V Source.The Power Drawn From A 200V Source Is

 

An Electric Heater Drawa 1000 Watts From A 250V Source The Power Drawn From A 200V Source Is

about this video-
in this video I explain you a question which was asked in SSC Je 2013 the question is -
An Electric Heater Drawa 1000 Watts From A 250V Source.The Power Drawn From A 200V Source Is



The voltage across R, L and C are 3 V, 14 V and 10 V respectively as in the figure. If the voltage source is sinusoidal, then the input voltage (r.m.s) is

 

The Voltage Across R, L And C Are 3V, 14V And 10V Respectively If The Voltage Source Is Sinusoidal


about this video-
in this video I explain you a question which was asked in SSC Je 2013 the question is-
The voltage across R, L and C are 3 V, 14 V and 10 V respectively as in the figure. If the voltage source is sinusoidal, then the input voltage (r.m.s) is


Commercial Unit Of Electrical Energy | Relation Between SI And Commercial Unit Of Electrical Energy|

 

Commercial Unit Of Electrical Energy | Relation Between SI And Commercial Unit Of Electrical Energy|



in this video I explain you

1. SI unit of electric energy
2. commercial unit of electric energy
3. 1 unit of energy is equivalent to
4. 1 kilowatt hour is equals to
5. why watt hr is not used as commercial unit
6. Relation Between SI And Commercial Unit Of Electrical Energy

and a question which was asked in SSC Je 2012 the question is -SI unit of electric energy is

Effective Value Of Voltage Given By V= 100 + 25Sinwt + 10Sinwt Will Be

 

Effective Value Of Voltage Given By V= 100 + 25Sinwt + 10Sinwt Will Be


|| Ssc je Question ||

about this video-
in this video I explain you a question which was asked in SSC Je 2007 the question is -
Effective Value Of Voltage Given By V= 100 + 25Sinwt + 10Sinwt Will Be

In The Circuit Shown Find The Current Through 4 Ohm Resistor Using Superposition Theorem

 In The Circuit Shown Find The Current Through 4 Ohm Resistor Using Superposition Theorem 






About this video-

in this video I explain you a question which was asked in SSC Je 2009 the question is-in the circuit shown find the current through 4 ohm resistor using superposition theorem. 


In The Figure Shown Below If We Connect a Source Of 2V With Internal Resistance Of 1ohm at AA' With With positive terminal at A, then Current through R is

 

In The Figure Shown Below If We Connect a Source Of 2V With Internal Resistance Of 1ohm at AA' With

about this video-
in this video I will explain you a question which was asked in SSC Je 2009 the question is -In The Figure Shown Below If We Connect a Source Of 2V With Internal Resistance Of 1ohm at AA' With With positive terminal at A, then Current through R is


In a balanced 3-phase circuit, the line current is 12A. When the power is measured by two wattmeter method, one meter reads 11kW while the other reads zero. The power factor of the load is

 

In A Balanced 3-Phase Circuit The Line Current Is 12A When The Power Is Measured By Two Wattmeter




about this video-
in this video I explain you a question which was asked in SSC Je 2013 the question is-In a balanced 3-phase circuit, the line current is 12A. When the power is measured by two wattmeter method, one meter reads 11kW while the other reads zero. The power factor of the load is


The Value Of V In Circuit Shown In The Given Figure

 

The Value Of V In Circuit Shown In The Given Figure


about this video-
in this video I will solve the question which was asked in SSC Je 2008 which is based on Nodal analysis the question is -the value of V in the circuit shown in the given figure is

A Load Is Connected To Supply A Current Transformer And Potential Transformer is Used In Between load and supply. a power factor of 0.5 is measured at the secondary side of CT and PT. if phase angle error of CT and PT are 0.4 and 0.7, power factor of the load is

 

Load Is Connected To Supply Current Transformer And Potential Transformer is Used In Between Load

about this video-
in this video I explain a question which was asked in SSC Je 2012 the question is
A Load Is Connected To Supply A Current Transformer And Potential Transformer is Used In Between load and supply. a power factor of 0.5 is measured at the secondary side of CT and PT. if phase angle error of CT and PT are 0.4 and 0.7, power factor of the load is


Extension Of Range Of Voltmeter Using Multiplier | What Is Multiplier And It's Function |

 Extension Of Range Of Voltmeter Using Multiplier | What Is Multiplier And It's Function |



about this video-


In This Video I Tell You About 


1.How to Increase The Range Of Voltmeter Using Multiplier 

2.What Is Multiplier And How Is It Connected With The Voltmeter 

3.What Are The Function Of Multiplier 

4.Which Material Is Used For Making Multiplier 

5.What Is Operating Mechanism Of Multipliers 

6.what is Multiplying factor

7.formula of Calculating Multiplier Resistance To Increase The Range Of Voltmeter 

and a question which was asked in SSC Je 2010 the question is -to increase the range of voltmeter


In Synchronous Motor Minimum Armature Current Occur At

 

In Synchronous Motor Minimum Armature Current Occur At


about this video-
in this video I will explain you a question which was asked in SSC Je 2008 the question is-In Synchronous Motor Minimum Armature Current Occur At

Which Motor Has The Poorest Speed Control | Which Motor Has Negative Speed Regulation |

 Which Motor Has The Poorest Speed Control | Which Motor Has Negative Speed Regulation |




about this video-

In This video I will tell you about the speed regulation of Differential compound motor and what is the reason behind differential compound motor has negative speed regulation hence we will see why differential compound motor has poor speed regulation. i also explain you a question which was asked in SSC Je 2007 the question is - which motor has the poorest speed control

Two Coil With Self Inductance 1H And 2H Having A Mutual Inductance Of 1H Between Them Carry Current Of 2A And √2A Respectively. The Total Energy Stored In The Field In

 

Two Coil With Self Inductance 1H And 2H Having Mutual Inductance Of 1H Between Them Energy In Field


about this video-

in this video I explain you a question which was asked in SSC Je 2011 the question is -Two Coil With Self Inductance 1H And 2H Having A Mutual Inductance Of 1H Between Them Carry Current Of 2A And √2A Respectively. The Total Energy Stored In The Field In


Joules Is

For The Circuit Shown Below Voltage V1 Will Be | Nodal Analysis Problem | Nodal Analysis Numerical|

 For The Circuit Shown Below Voltage V1 Will Be | Nodal Analysis Problem | Nodal Analysis Numerical| 


about this video-

in this video I will explain you what is KCL a numerical which was based on Nodal analysis which was asked in SSC Je 2007 the question is -

For The Circuit Shown Below Voltage V1 Wil


l Be

A Current i = (10 + 10 sint) Amper Is Passed Through Moving Iron Type Ammeter. It's Reading Will Be

 A Current i = (10 + 10 sint) Amper Is Passed Through Moving Iron Type Ammeter. It's Reading Will Be 





about this video-

in this video I explain you a question which was asked in SSC Je 2008 the question is-

A Current i = (10 + 10 sint) Amper Is Passed Through Moving Iron Type Ammeter. It's Reading Will Be 

Sunday, September 25, 2022

A wheat stone bridge has ratio arm of 1000Ω 100Ω resistances, the standard resistance arm consist of 4 decade resistance boxes of 1000, 100, 10, 1Ω steps. The maximum and minimum value of unknown resistance that can be determined with this setup are

 about this video-


in this video I will solve the numerical which is come in SSC Je electrical


question - A wheat stone bridge has ratio arm of 1000Ω 100Ω resistances, the standard resistance arm consist of 4 decade resistance boxes of 1000, 100, 10, 1Ω steps. The maximum and minimum value of unknown resistance that can be determined with this setup are


A separately excited DC generator has a no-load voltage of 127 V, Ra = 0.02 Ω and Rsh = 15Ω Find the armature current when the generator terminal voltage is 120 V on load

about this video- 

in this video I explain you a question which was asked in SSC Je 2020 the question is-A separately excited DC generator has a no-load voltage of 127 V, Ra = 0.02 Ω and Rsh = 15Ω Find the armature current when the generator terminal voltage is 120 V on load


Saturday, September 24, 2022

Comparison Between Emf And Mmf || Diffrence Between Electromotive Force And Magnetomotive Force ||

 Comparison Between Emf And Mmf || Diffrence Between Electromotive Force And Magnetomotive Force ||





about this video-

in this video I tell you about the difference between Electromotive Force and Magnetomotive Force. 


Thursday, September 22, 2022

What Is Magnetomotive Force | Magnetomotive Force Definition | Mmf formula | MMF Unit |

 What Is Magnetomotive Force | Magnetomotive Force Definition | Mmf formula | MMF Unit | 




about this video-

in this video I explain you about Magnetomotive Force which was also known as mmf.I tell you about the definition of Magnetomotive Force (mmf).about Magnetomotive Force formulas. And Diffrent unit of Magnetomotive Fo


rce. 

Monday, September 19, 2022

An Ideal Voltage Regulator Has Voltage Regulation Off


 

Which Material Used For Making Electric Switch | Why Thermosetting Plastic Is Used For Making Switch

 

Which Material Used For Making Electric Switch | Why Thermosetting Plastic Is Used For Making Switch



about this video-
in this video I explain you about which material is used for making Electrical switches, plugs and plug boards and why. I also explain you why Electrical switches, plugs and sockets are made up of thermosetting plastic

Sunday, September 18, 2022

Why Capacitor Opposes Change In Voltage || How Capacitor Opposes Change In Voltage |

 

Why Capacitor Opposes Change In Voltage || How Capacitor Opposes Change In Voltage |


|

about this video-
in this video I explain you why capacitor opposes change in voltage. and how capacitor opposes change in voltage.

Monday, September 5, 2022

Purpose Of Overhead Ground Wire In Transmission Line || Role Of Overhead Earth Wire ||

 

Purpose Of Overhead Ground Wire In Transmission Line || Role Of Overhead  Earth Wire ||



about this video-
in this video I explain you about the role of Overhead ground wire in transmission lines.