What this practice covers
These questions are drawn from past CIE 0625 Physics papers and filtered to electromagnetic effects. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising practice questions →
What examiners see students get wrong here
These are the errors that cost marks on electromagnetic effects, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Saying a transformer works on direct current.
- Saying a stationary magnet inside a coil induces a current.
- Placing the peak generator output when the coil is perpendicular to the field.
- Saying a step-up transformer increases both voltage and current.
- Explaining high-voltage transmission by saying the voltage reduces the resistance.
- Using the left-hand rule for induction, or the right-hand grip rule for the motor effect.
- Saying the commutator makes the coil spin faster rather than keeping it turning one way.
- Forgetting that reversing both the current and the field leaves the force unchanged.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Electromagnetic effects revision notes.