Advertisements
Advertisements
प्रश्न
What is Lenz’s law?
Advertisements
उत्तर
Lenz's law states that the direction of induced e.m.f. (or induced current) is such that it always tends to oppose the cause which produces it.
APPEARS IN
संबंधित प्रश्न
In which of the following case does the electromagnetic induction occur?
A conductor is moved in a varying magnetic field. Name the law which determines the direction of current induced in the conductor.
Why does it become more difficult to move a magnet towards a coil when the number of turns in the coil has been increased?
Explain the principle, construction and working of a dc motor.
Faraday's law is the consequence of conservation of ______
A coil of 25 turns is pulled in 0.05 s between the poles of a magnet, where its area includes `21 xx106-6 "Wb" "to" 1 xx 10^-6 "Wb"`. The average e.m.f. is ______.
In a coil of resistance 150 `Omega`, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is ____________.

A.C generator works on the principle of ____________.
The laws of induction were given by ______.
Fleming’s left-hand rule is also known as the dynamo rule.
