Electricity and Magnetism Quiz

What happens to a charged particle at rest in a magnetic field?

• It is not affected by the field

• It slows down

• It moves in a circle

• It speeds up

What is an electric current?

• A type of transformer

• Charged particles in motion

• Charged particles at rest

• A magnetic field

What happens when a single wire of current is placed in a magnetic field?

• It rotates

• It moves in one direction

• It disappears

• It stays still

What device measures small currents?

• Motor

• Generator

• Transformer

• Galvanometer

What does an electric motor do?

• Transforms mechanical energy into electrical energy

• Uses an electric current to turn an axle

• Increases voltage

• Measures current

What is electromagnetic induction?

• Generating an electric current from the motion of a conductor through a magnetic field

• Increasing current

• Using a battery to create current

• Measuring voltage

What type of current comes from a battery?

• Magnetic current

• Induced current

• Direct current

• Alternating current

What is alternating current?

• Current that is constantly reversing

• Current that is always on

• Current that flows in one direction

• Current that is always off

What does a generator do?

• Produces electricity

• Measures current

• Decreases voltage

• Increases voltage

What is the primary coil in a transformer?

• The coil that the current goes through first

• The coil that increases voltage

• The coil that decreases voltage

• The coil that is connected to a circuit