AC Generator and Transformer NEET Questions

Physics - Electromagnetic Induction and Alternating Currents

AC Generator and Transformer MCQ Questions


1.
An AC generator converts:
A.
Mechanical energy into electrical energy
B.
Chemical energy into electrical energy
C.
Heat energy into electrical energy
D.
Electrical energy into mechanical energy
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ANSWER :
A. Mechanical energy into electrical energy
2.
The principle of an AC generator is based on:
A.
Chemical effect of current
B.
Magnetic effect of current
C.
Heating effect of current
D.
Electromagnetic induction (Faraday's law)
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ANSWER :
D. Electromagnetic induction (Faraday's law)
3.
Who is credited with the development of the AC generator?
A.
Michael Faraday
B.
Joseph Henry
C.
Thomas Edison
D.
Nikola Tesla
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ANSWER :
D. Nikola Tesla
4.
The basic elements of an AC generator are:
A.
Capacitor and inductor
B.
Coil, magnet, slip rings, and brushes
C.
Transistor and diode
D.
Battery and resistor
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ANSWER :
B. Coil, magnet, slip rings, and brushes
5.
The function of slip rings in an AC generator is:
A.
To convert AC to DC
B.
To provide continuous electrical contact between rotating coil and external circuit
C.
To rotate the coil
D.
To increase the output voltage
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ANSWER :
B. To provide continuous electrical contact between rotating coil and external circuit
6.
The difference between an AC generator and a DC generator lies in:
A.
Material of coil
B.
The principle of operation
C.
The magnitude of voltage
D.
Slip rings (AC) vs split-ring commutator (DC)
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ANSWER :
D. Slip rings (AC) vs split-ring commutator (DC)