Exams › NEET › Physics

Which one of the following statements is true?

1. A motor works on the principle of electromagnetic induction
2. An electric motor converts mechanical energy into electrical energy
3. AC generator has slip rings while DC generator has a commutator
4. An electric generator converts electrical energy into mechanical energy

Correct answer: AC generator has slip rings while DC generator has a commutator

Solution

An AC generator uses slip rings so the output current can reverse direction each half-turn. A DC generator uses a commutator to keep the external current in one direction, so statement C is true.

Related NEET Physics questions

• Which of the following statement regarding transformer is incorrect?
• Which statement is incorrect related to induced electric field due to changing magnetic flux?
• A dynamo produces an electric current. It is based on the principle:
• In electromagnetic induction, the induced E.M.F is independent of
• A conductor is moved in a varying magnetic field. Name the law which determines the direction of current induced in the conductor:
• A cylindrical bar magnet is lying along the axis of a circular coil. If the magnet is rotated about the axis of the coil then

⚔️ Practice NEET Physics free + battle 1v1 →