Quiz Challenge
Electromagnetism: electromagnetic induction, transformers
Unit: 4. Electricity and Magnetism
Board: Cambridge International
Standard: SL & HL
Subject IGCSE Physics
Grade Year 10/11
Questions 40
Time Estimate 30 mins
1 Preview Question
In a DC motor, what is the function of the commutator?
- A To increase the magnetic field strength
- B To reverse the direction of current in the coil every half turn
- C To reduce eddy current losses
- D To step up the voltage
*The correct answer is not shown in the preview.
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