85.0k views
0 votes
State the Laws of electromagnetic induction.

(i) Mention two advantages of a.c. generator over d.c. generator.

User Kashlo
by
6.9k points

1 Answer

3 votes

Final answer:

The Laws of Electromagnetic Induction involve Faraday's Law and Lenz's Law. AC generators have advantages of higher efficiency in long-distance power transmission and lower maintenance requirements.


Step-by-step explanation:

Laws of Electromagnetic Induction:

  1. Faraday's Law: The induced emf in a circuit is directly proportional to the rate of change of magnetic flux through the circuit.
  2. Lenz's Law: The direction of the induced current is such that it opposes the change that produced it.

Advantages of AC Generator over DC Generator:

  • AC generators are more efficient in transmitting power over long distances due to lower energy losses.
  • AC generators do not require a commutator, which decreases the maintenance and reduces the chances of wear and tear.

Learn more about Electromagnetic Induction

User Tenatious
by
7.8k points