Skip to content

Course home

Sign up

12.3 The motor effect

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Question 37
H

A magnet rests on a balance. A wire is supported independently with 0.040 m perpendicular to the magnetic field. Switching on a current of 2.0 A increases the balance reading by 3.2 g. Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg and F=BIlF=BIlF=BIl. What is the magnetic flux density?

[1]
A

40 T40\ \mathrm{T}40 T

B

0.040 T0.040\ \mathrm{T}0.040 T

C

0.40 T0.40\ \mathrm{T}0.40 T

D

4.0 T4.0\ \mathrm{T}4.0 T

Markscheme

12.3 The motor effect Questions

  1. GCSE
  2. /Physics
  3. /12.3 The motor effect

86 exam-style questions on Edexcel GCSE Physics 12.3 The motor effect, covering 12.3.1 The motor effect, 12.3.2 Fleming's left-hand rule, 12.3.3 Force on a conductor, and 12.3.4 Electric motors. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank