Question
How the direction of induced electromotive force is determined?

Answer

By Lenz's law

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The vertical component of Earth’s magnetic field at a place is $ \sqrt{3}$ times the horizontal component. What is the value of angle of dip at this place?
Answer carefully:
Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).
Figure shows three point charges, + 2q, – q and + 3q. Two charges + 2q and – q are enclosed within a surface ‘S’. What is the electric flux due to this configuration through the surface ‘S’?
In the circuit shown in Fig., find the value of $R_C$.
Name the electromagnetic waves that have frequencies greater than those of ultraviolet light but less than those of gamma rays.
In a transistor:
  1. The emitter has the least concentration of impurity.
  2. The collector has the least concentration of impurity.
  3. The base has the least concentration of impurity.
  4. All the three regions have equal concentrations of impurity.
If magnitude of current is made twice in any inductor, then how many times will the stored energy become?
Write the magnifying power of objective lens.
The magnetic moment vectors $\mu_\text{s}$ and $\mu_\text{l}$ associated with the intrinsic spin angular momentum S and orbital angular momentum l, respectively, of an electron are predicted by quantum theory (and verified experimentally to a high accuracy) to be given by:
$\mu_\text{s}=-(\text{e}/\text{m})\text{S}.$
$\mu_\text{l}=-(\text{e}/2\text{m})\text{l}.$
Which of these relations is in accordance with the result expected classically? Outline the derivation of the classical result.
There are 1000 turns in 1 meter length of the core of a solenoid and a current of 2A is flowing through it. What is the magnitude of magnetizing field H?