Skip to content
Clear highlightsClear Highlight Report a problem

A Dynamo

A dynamo is an electrical generator that produces a current. When a magnet in a dynamo spins, an emf is induced in the coil. If the coil is connected to a lamp, the lamp lights because the emf forces a current round the circuit. The direction of the current is given by Fleming's Right Hand Rule.

Read the text

Read the text and highlight anything you think is important. When you go on, the text is hidden and you answer from memory.

Next

Specification: OCR Physics A (H556), A-level, 6.3.3 Electromagnetism. Topic: Electromagnetic Induction.

Key terms in this lesson

gravitational potential
The work done per unit mass to move a small test mass from infinity to a point in a gravitational field.
internal energy
The sum of the randomly distributed kinetic and potential energies of the particles, atoms or molecules, of a system.

More in Electromagnetic Induction

All 12 lessons in Electromagnetic Induction · All OCR A-level Physics topics