Magnetic fields due to currents
20.4What the syllabus asks of you
- sketch magnetic field patterns due to the currents in a long straight wire, a flat circular coil and a long solenoid
- understand that the magnetic field due to the current in a solenoid is increased by a ferrous core
- explain the origin of the forces between current-carrying conductors and determine the direction of the forces
Read the notes first
Chapter 20: Magnetic fields due to currents
Drill this topic
All 5 questions on Magnetic fields due to currents, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
5 questions
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.