
At very high frequencies, the effective impedance of the given circuit will be _________



Important Questions on Electromagnetic Induction and Alternating Currents
For the given circuit the current through the battery when the key in closed and the steady state has been reached is

A square loop of side and resistance is moved towards right with a constant speed The right arm of the loop is in a uniform magnetic field of The field is perpendicular to the plane of the loop and is going into it. The loop is connected to a network of resistors each of value What should be the value of so that a steady current of flows in the loop ?

The arm of a rectangular conductor is moving from to outwards and then inwards from to as shown in the figure. A uniform magnetic field perpendicular to the plane is acting from to Identify the graph showing the variation of different quantities with distance:


current and supplied voltage and the nature of the circuit is:


In a circuit consisting of a capacitance and a generator with alternating emf, and are the voltage and current. Correct phasor diagram for such circuit is

Match List-I with List-II.
List - I | List - II | ||
(a) | (i) | Current is in phase with emf | |
(b) | (ii) | Current lags behind the applied emf | |
(c) | (iii) | Maximum current occurs | |
(d) | Resonant frequency | (iv) | Current leads the emf |
Choose the correct answer from the options given below.
