Current carrying wires, the right-hand grip rule, solenoids, and electromagnetic devices
- When a current flows through a conductor what is produced around it?
- What does the strength of a magnetic field around a current-carrying depend on? State two things.
- How can the right-hand grip rule be used to decide the direction of the magnetic field lines around a current-carrying wire?
- How can a wire be shaped so that it forms a solenoid?
- What does shaping into a solenoid do to the strength of a magnetic field?
- How would you describe the magnetic field inside a solenoid?
- Is the magnetic field around a solenoid similar to that of a bar magnet?
- What does an iron core do to the strength of a solenoid?
- Where would you place the iron for it to be a ‘core’?
- What is another name for a solenoid with an iron core?
- Find a diagram of an electric bell and explain how it works.
- Find a diagram of a relay switch and explains how it works.
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