CP Ch10.5 Electromagnetic Induction

Who discovered that electric current can be induced in a wire by moving a magnet in or out of a coiled part of the wire?

• Maxwell

• Ampère

• Faraday

• Volta

What causes the induced voltage according to the text?

• Relative motion between a wire and an electric field

• Relative motion between a wire and a gravitational field

• Relative motion between a wire and a magnetic field

• Relative motion between a wire and a heat field

What occurs when a changing magnetic field is present in a loop of wire?

• Conduction

• Radiation

• Electromagnetic induction

• Insulation

What type of waves are underlined by electromagnetic induction?

• Sound waves

• Electromagnetic waves

• Water waves

• Heat waves

What factor determines the magnitude of induced voltage in electromagnetic induction?

• The strength of the magnetic field

• The number of loops of wire

• The resistance of the wire

• The temperature of the wire

Where is electromagnetic induction observed in various everyday scenarios?

• Microwaves

• Traffic lights

• Waterfalls

• Deserts

What were voltaic cells primarily used for?

• Producing large currents

• Generating heat energy

• Dissolving metals in acids

• Producing small currents