Self-induced EMF is sometimes also known as

In the relation ϕ=BA cosθ, θ is angle

The cause of induced e.m.f. is

When number of turns of a solenoid is doubled, its self inductance will becomes

A capacitor of capacitance C has reactance X. If capacitance and frequency become double, then the capacitive reactance will be

The core of a transformer is laminated, so as to

If we decrease frequency of source in series R-L-C circuit, impedance may

Principle of AC generator based on

An emf of 200V is induced in a circuit when current in the circuit falls from 5A to 0. A in 0.1 second. The self-inductance of the circuit is-

The magnetic flux linked with a coil at any instant t is φ=(6t² -8t+5) Wb, the emf induced in the coil at t= 2 second is-

A metallic cylinder is held vertically and then or small magnet is dropped along its axis. It will fall with-

The magnetic flux through a circuit of resistance R changes by an amount  $d\phi$   in time dt , Then the total quantity of electric charge Q , which passing during this time through any point of the circuit is given by

A conducting square loop of side l and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane at the loop exists everywhere with half the loop outside the field, as shown in figure. The induced e.m.f. is

inductive reactance is given by