In a coil of self-inductance 10mH, the current I (in ampere) varies with time t (in second) as i=8t+2amp

In a closed circuit, the current I (in ampere) at an instant of time t (in second) is given by I = 4-0.08t . The number of electrons flowing in 50 s through the cross-section of the conductor is

In an inductor of self-inductance L=2 mH, current changes with time according to relation i=t^(2)e^(-t) . At what time emf is zero ?

In an inductor of self-inductance L=2 mH, current changes with time according to relation i=t^(2)e^(-t) . At what time emf is zero ?

In a coil of self-inuctance 0.5 henry, the current varies at a constant rate from zero to 10 amperes in 2 seconds. The e.m.f. generated in the coil is

In Fig, the mutual inductance of a coil and a very long straight wire is M , coil has resistance R and self-inductance L . The current in the wire varies according to the law I = at , where a is a constant and t is the time, the time dependence of current in the coil is

Energy stored in a coil of self-inductance 40mH carrying a steady current of 2 A is

Two different coils have self inductances L_1=9mH and L_2=2mH . The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same constant rate. At a certain instant of time, the power given to the two coils is the same. At that time, the current the induced voltage and the energy stored in the first coil are i_1,V_1 and W_1 respectively. Corresponding values for the second coil at the same instant are i_2,V-2 and W_2 respectively. Then,

When a battery is connected across a series combination of self inductance L and resistance R , the variation in the current i with time t is best represented by

Current in a coil of self-inductance 2.0 H is increasing as I = 2 sin t^(2) . The amount of energy spent during the period when the current changes from 0 to 2 A is

Two different coils have self-inductances L_(1) = 8 mH and L_(2) = 2 mH . The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same constant rate. At a certain instant of time, the power given to the two coil is the same. At that time, the current, the induced voltage and the energy stored in the first coil are i_(1), V_(1) and W_(1) respectively. Corresponding values for the second coil at the same instant are i_(2), V_(2) and W_(2) respectively. Then: