Magnetic effect of a current
4.5.3What the syllabus asks of you
- Describe the pattern and direction of the magnetic field due to currents in straight wires and in solenoids and state the effect on the magnetic field of changing the magnitude and direction of the current
- Describe how the magnetic effect of a current is used in relays and loudspeakers and give examples of their application
Read the notes first
Chapter 4: Magnetic effect of a current
Drill this topic
Every question on Magnetic effect of a current, untimed, marked as you go.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
11 questions
1Oct / Nov 2024 · Paper 11 · Q36Show mark scheme →
A1, 2 and 3
B1 and 3 only
C1 only
D2 only
Mark scheme
2Oct / Nov 2024 · Paper 12 · Q34Show mark scheme →
Aconcentric circles with arrows anticlockwise
Bconcentric circles with arrows clockwise
Cconcentric circles with arrows clockwise
Dconcentric circles with arrows anticlockwise
Mark scheme
3May / June 2024 · Paper 11 · Q35Show mark scheme →
A1 and 2
B1 and 4
C2 and 3
D3 and 4
Mark scheme
4Oct / Nov 2023 · Paper 12 · Q36Show mark scheme →
Acompass
Bfuse
Cloudspeaker
Dmagnifying glass
Mark scheme
5Oct / Nov 2022 · Paper 12 · Q38Show mark scheme →
A1 → 5 → 2 → 4 → 3
B3 → 2 → 4 → 1 → 5
C3 → 4 → 1 → 5 → 2
D5 → 1 → 4 → 2 → 3
Mark scheme
6Oct / Nov 2021 · Paper 12 · Q35Also set in Oct / Nov 2021 Paper 11Show mark scheme →
Adrops / rings
Bdrops / stops ringing
Cmoves up / rings
Dmoves up / stops ringing
Mark scheme
7May / June 2020 · Paper 11 · Q33Show mark scheme →
Acoil only
Bcone only
Cmagnet only
Dcoil and cone
Mark scheme
8May / June 2019 · Paper 11 · Q29Show mark scheme →
A[compass needle pointing up]
B[compass needle pointing down]
C[compass needle pointing left]
D[compass needle pointing right]
Mark scheme
9May / June 2018 · Paper 11 · Q28Show mark scheme →
Aconcentric circles with clockwise arrows, current into page
Bconcentric circles with anticlockwise arrows, current into page
Cconcentric circles with clockwise arrows, current into page
Dconcentric circles with anticlockwise arrows, current into page
Mark scheme
10May / June 2018 · Paper 12 · Q34Also set in May / June 2018 Paper 11Show mark scheme →
Airon armature falls, bell rings
Biron armature falls, bell stops ringing
Ciron armature moves up, bell rings
Diron armature moves up, bell stops ringing
Mark scheme
11Oct / Nov 2017 · Paper 12 · Q34Show mark scheme →
Aclockwise; the lines move closer together
Bclockwise; the lines move further apart
Canticlockwise; the lines move closer together
Danticlockwise; the lines move further apart
Mark scheme