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