What is created around a conductor when an electric current flows through it?

State Fleming's Left-Hand Rule. What does it help us determine?

Name two devices that operate based on the motor effect (the force on a current-carrying conductor in a magnetic field).

What is the function of the commutator in a DC motor?

What is the primary energy conversion that takes place in a DC motor?

Define electromagnetic induction.

List two factors that can increase the magnitude of the induced electromotive force (e.m.f.) in a coil.

State Fleming's Right-Hand Rule. What does it help us determine?

What is the primary energy conversion that takes place in an electrical generator (dynamo)?

Differentiate between an alternating current (AC) and a direct current (DC).

What is the main function of a transformer?

Do transformers work with AC or DC? Explain why.

Differentiate between a step-up transformer and a step-down transformer in terms of their coil windings and voltage change.

A transformer has 200 turns on its primary coil and 1000 turns on its secondary coil. If the input voltage is 12 V (AC), what is the output voltage?

Name a device that uses electromagnetic induction to function.