Generators and AC Induction Motors (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What energy conversion does a generator perform?
What energy conversion does a generator perform?
Kinetic energy to electrical energy
What is the key function of slip rings in an AC generator?
What is the key function of slip rings in an AC generator?
Maintain continuous contact as coil rotates
Which factor does NOT increase the maximum EMF in an AC generator?
Which factor does NOT increase the maximum EMF in an AC generator?
Decreasing the coil's cross-sectional area
A coil of area m² with 400 turns rotates at 25 Hz in a 0.10 T field. Find max EMF.
A coil of area m² with 400 turns rotates at 25 Hz in a 0.10 T field. Find max EMF.
63 V
If an AC generator produces 240 V RMS, what is the peak voltage?
If an AC generator produces 240 V RMS, what is the peak voltage?
340 V
When is the induced EMF in a rotating coil at maximum?
When is the induced EMF in a rotating coil at maximum?
When magnetic flux changes most rapidly
What component in a DC generator converts AC to DC output?
What component in a DC generator converts AC to DC output?
Commutator
Why do DC generators use multiple coils offset at different angles?
Why do DC generators use multiple coils offset at different angles?
To produce smoother DC output
What is the squirrel cage in an AC induction motor?
What is the squirrel cage in an AC induction motor?
Metal rods in cylinder with conducting rings
What is a key advantage of AC induction motors over DC motors?
What is a key advantage of AC induction motors over DC motors?
No commutator means no sparking hazard