A 230V 50Hz Supply Is Connected To A Transformer With Secondary Open Condition If The Transformer Takes 0.5A And Absorb 69W The Iron Loss Current Is

 

Three Inductors Each Of 60mH Are Connected In Delta The Value Of Inductance Of Each Arm Of The Equivalent Star Connection Is

 

the capacitance measured between any two cores of 3 core cable with sheath earthed is 3 micro farad. the capacitance per phase will be

 

the capacitance measured between any two cores of 3 core cable with sheath earthed is 3 micro farad. the capacitance per phase will be

The High Torque To Weight Ratio In An Analog Indicating Instrument Indicates

 

For an element v(t) = 120 cos (377t +45) V is the voltage and I(t) = 10 cos (377t-15) is the current through the element then the value of average power is

 

a 6 pole 3 phase alternator running at 1000 rpm supplies to an 8 pole 3 phase Induction motor which has a rotor current of frequency 2 hz the speed at which the motor operated is

 

In Case Of DC Series Motor It Is Possible To Have Finite No Load Speed

 

In Case Of DC Series Motor It Is Possible To Have Finite No Load Speed