ElectroMagnetic InductionHard
Question
In a coil of self inductance of 5henry, the rate of change of current is 2 ampere per second, the e.m.f. induced in the coil is :
Options
A.5 V
B.-5 V
C.-10 V
D.10 V
= −5 × 2 = - 10 VMore ElectroMagnetic Induction Questions
In figure a bar magnet is moved along the axis of a copper ring, an anticlockwise (as seen from the side of magnet) curr...On passing 2 amp. current in a coil of 50 mH. The energy stored in it is:-...A metallic disc of radius ′R′ is rotating about its geometrical axis with constant angular speed ′w...An electric moter runs on a D.C., sources of emf. E and internal resistance ′r′. Then the power out put of s...In the given figure if the magnetic field, which is perpendicular to the plane of the paper in the inward direction incr...