Electromagnetic induction
4.5.1What the syllabus asks of you
- Describe an experiment to demonstrate electromagnetic induction
- State that the magnitude of an induced e.m.f. is affected by: (a) the rate of change of the magnetic field or the rate of cutting of magnetic field lines (b) the number of turns in a coil
- State and use the fact that the effect of the current produced by an induced e.m.f. is to oppose the change producing it (Lenz’s law) and describe how this law may be demonstrated
Read the notes first
Chapter 4: Electromagnetic induction
Drill this topic
Every question on Electromagnetic induction, untimed, marked as you go.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
12 questions
1Oct / Nov 2025 · Paper 12 · Q35Show mark scheme →
Aa battery
Ban electromagnet
Ca motor
Da transformer
Mark scheme
2Oct / Nov 2024 · Paper 12 · Q33Show mark scheme →
Apole at P when magnet enters the coil: N; pole at Q when magnet leaves the coil: N
Bpole at P when magnet enters the coil: N; pole at Q when magnet leaves the coil: S
Cpole at P when magnet enters the coil: S; pole at Q when magnet leaves the coil: N
Dpole at P when magnet enters the coil: S; pole at Q when magnet leaves the coil: S
Mark scheme
3Oct / Nov 2023 · Paper 11 · Q29Show mark scheme →
AThe coil is longer and the other pole of the magnet enters the coil first.
BThe coil is longer and the same pole of the magnet enters the coil first.
CThe coil is shorter and the other pole of the magnet enters the coil first.
DThe coil is shorter and the same pole of the magnet enters the coil first.
Mark scheme
4Oct / Nov 2023 · Paper 11 · Q30Show mark scheme →
Anorth attraction
Bnorth repulsion
Csouth attraction
Dsouth repulsion
Mark scheme
5May / June 2023 · Paper 11 · Q32Show mark scheme →
AMove both the wire and the magnet upwards at the same speed.
BThe wire is kept stationary and the magnet is moved upwards.
CThe wire is moved downwards and the magnet is moved upwards.
DThe wire is moved upwards and the magnet is kept stationary.
Mark scheme
6May / June 2023 · Paper 12 · Q32Show mark scheme →
Achanging the number of turns of wire in the coil
Bchanging the height h from which the coil is dropped
Cchanging the direction of the magnet, so the north pole is at the bottom
Dchanging the strength of the magnetic field from the magnet
Mark scheme
7May / June 2022 · Paper 12 · Q39Also set in May / June 2022 Paper 11Show mark scheme →
Amoving the opposite pole into the coil
Bpulling the magnet out of the coil
Cpushing the magnet in faster
Dunwinding some of the turns of wire
Mark scheme
8May / June 2021 · Paper 12 · Q37Show mark scheme →
Agraph A
Bgraph B
Cgraph C
Dgraph D
Mark scheme
9May / June 2020 · Paper 12 · Q40Show mark scheme →
Amoving the coil and the magnet at the same speed in opposite directions
Bmoving the coil and the magnet at the same speed in the same direction
Cmoving the coil away from the stationary magnet
Dmoving the magnet towards the stationary coil
Mark scheme
10Oct / Nov 2017 · Paper 11 · Q34Show mark scheme →
AA
BB
CC
DD
Mark scheme
11May / June 2017 · Paper 12 · Q37Show mark scheme →
Amoving the magnet more quickly
Bmoving the magnet more slowly
Cpulling the magnet out instead of pushing it in
Dusing the S-pole of the magnet instead of the N-pole
Mark scheme
12Oct / Nov 2016 · Paper 12 · Q37Also set in Oct / Nov 2016 Paper 11Show mark scheme →
Aat P and at Q
Bat P and at R
Cat Q only
Dat R only
Mark scheme