Electric Generator
Trending Questions
Q.
An electric generator works on the principle of ___.
- Electromagnetic induction
- Force on a current carrying conductor
- Joule’s heating effect
- Friction
Q. The current that changes direction continuously is known as ___ current.
Q. The arm of an electric generator with split rings is rotated in clockwise direction. The deflection of the galvanometer will _______.


- be towards left
- be towards right
- oscillates between left and right.
- Can not be determined
Q.
When a coil is rotated in a magnetic field and is connected to a circuit using slip rings, the direction of current in the circuit:
- There will be no current
- Is constant
- Changes continuously
- Cannot be predicted
Q. The primary coil of a transformer connected to an AC supply of 320 volts contains 500 turns, while the secondary coil has 200 turns. What will be the voltage at the secondary coil ?
- 640 volts
- 728 volts
- 800 volts
- 128 volts
Q. The current produced by a generator with slip rings will have which of the following current variations with time as output ?


- 2 only
- Neither 1 nor 2
- Both 1 and 2
- 1 only
Q. AC generator will have ___ rings.
Q. Alternating current has a constant direction.
- True
- False
Q. Which of the following statements are true?
- AC generator supplies direct current.
- DC generator has a commutator.
- DC generator supplies alternating current.
- AC generator has slip rings.
Q.
The essential difference between an AC generator and a DC generator is that:
AC generator has an electromagnet while a DC generator has permanent magnet.
AC generator has split rings while DC generator has slip rings.
AC generator has slip rings while DC generator has split rings.
AC generator will generate a higher voltage.