Year 13 Physics
Magnetic fields and induction
Force on a current and a moving charge, circular motion in a magnetic field, flux and flux linkage, Faraday and Lenz laws, generators and transformers.
Magnetic fields and induction free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. Which change would quadruple the force on a straight wire in a uniform field, with the wire at right angles to the field?
Your answer is marked as soon as you give it.
Want more of this topic?
- A narrated lesson video that works through the topic, with worked examples
- 100 practice questions at foundation, core and stretch level
- A worked explanation on every answer, and progress you can come back to
The lesson and practice open when you start the 7-day free trial. Cancel before it ends and you pay nothing.