Tag: ac generator

Questions Related to ac generator

Multiple choice physics magnetism and electromagnetism electric generator ac generator magnetic effects of electric current

Electric generator ____________.

  1. Converts electric energy into magnetic energy.

  2. Converts electric energy into mechanical energy.

  3. Converts mechanical energy into electrical energy.

  4. Converts magnetic energy into electrical energy.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An electric generator is a machine which generates electricity by using the principle of EMI. It converts mechanical energy into electrical energy.

Multiple choice physics magnetism and electromagnetism electric generator ac generator magnetic effects of electric current

Electric generator (Dynamo) generates electricity by using the principle ______.

  1. electric circuit

  2. magnetic field

  3. electromagnetic induction

  4. none

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electric generator (Dynamo) generates electricity by using the principle electromagnetic induction
The generator/dynamo is made up of stationary magnets (stator) which create a powerful magnetic field, and a rotating magnet (rotor) which distorts and cuts through the magnetic lines of flux of the stator. When the rotor cuts through lines of magnetic flux it makes electricity.

Multiple choice physics effects of electric current electric generator ac generator magnetic effects of electric current

Principle behind electric generator is

  1. when a straight conductor is moved in the electric field, then current is induced in the conductor.

  2. when a circular loop is moved in electric field, then current is induced in the conductor.

  3. when a straight conductor is moved in a magnetic field, the current is induced in the conductor.

  4. none

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electric generator is the application of EMI. The electric generator woeles on the principle that when a straight conductor is moved in magnetic field, then current is induced in the conductor.

Multiple choice physics magnetism and electromagnetism electric generator ac generator magnetic effects of electric current

In large powerhouse generator, the ________ are stationary and the _______ rotates

  1. electromagnets and coils respectively

  2. induces and commutator respectively

  3. coils and electromagnet respectively

  4. commutators and inducer respectively

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The power house AC generators have a fixed site of coil arranged around a relating electromagnet. Thus, in large power house generators, the coils are stationary are the electromagnet rotates.