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प्रश्न
What is Lenz’s law?
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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.
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संबंधित प्रश्न
State Lenz’s Law.
- Describe briefly one way producing an induced e.m.f?
- State one factor that determines the magnitude of induced e.m.f. in part (a) above.
- What factor determines the direction of induced e.m.f. in part (a) above?
A conductor is moved in a varying magnetic field. Name the law which determines the direction of current induced in the conductor.
Explain the principle, construction and working of a dc motor.
An electron moves on a straight line path XY as shown. The abed is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?
Magnetic flux passing through a coil is initially 6 x 10-4 Wb. It reduces to 10 % of its original value in 't' second. If the e.m.f. induced is 0.54 mV then 't' in second is ____________.
A magnet is moved towards a coil (i) quickly (ii) slowly. The induced potential difference.
A.C generator works on the principle of ____________.
The laws of induction were given by ______.
The magnetic flux through a coil perpendicular to its plane is varying according to the relation Φ = (5t3 + 4t2 + 2t − 5) Weber. If the resistant of the coil is 5 ohm, then the induced current through the coil at t = 2 sec will be ______.
