BARC EE : Network Theory Quiz-3

Two identical coils A and B of 1000 turns each lie in parallel plane that such 90 percent of flux produced by one coil links with the other. If a current of 5 A flowing in A produces a flux of 0.05mWb. Then find the coefficient of coupling between coils A and B.

Calculate the average power, if V(t) = 50 cos(ωt + 60^o) and i(t) = 10 cos(ωt + 30^o).

Consider the following circuit

What is the value of current I in the 5Ω resistor?

In the circuit shown in the figure, the current i_L(t) is

For the circuit shown in the figure below, determine the steady state voltage across 3 Ω resistor and steady state current across it?

Determine the resonant frequency of a tank circuit having capacitance of 0.02 mF and inductance of 0.08 mH?

Two tungsten bulb rates at 60 W and 100 W, are connected in series with an input d.c. voltage of 220 V, which one of the following bulb glow brighter?

For the given circuit below, determine the current flowing in 2 H inductor due to source V₁ only.

The time constant of capacitance circuit is define as the time during which voltage:

The power factor as resonance in RLC parallel circuit is: