ElectroMagnetic InductionHard
Question
In a motor when 4A current flows through it the power consumed is 20 W and the induced potential difference is 220 V. The applied emf is :-
Options
A.220 V
B.225 V
C.240 V
D.260 V
More ElectroMagnetic Induction Questions
A magnet is made to oscillate with a particular frequency, passing through a coil as shown in figure, The time varition ...In figure a bar magnet is moved along the axis of a copper ring, an anticlockwise (as seen from the side of magnet) curr...Two different coils have self-inductance L1 = 8 mH and L2 = 2mH. The current in one coil is increased at a constant rate...A rectangular loop of sides ′a′ and ′b′ is placed in xy plane. A very long wire is also placed i...In an AC circuit the voltage applied is E = E0sinωt. The resulting current in the circuit is I = I0sin . The power ...