Quiz on Electromagnetism and Faraday's Law

What is electromagnetic induction?

• Creation of a voltage by a stationary conductor

• Creation of a magnetic field by an electric current

• Creation of an electro-motive force by a moving magnetic field

• Creation of an electric field by a static magnetic field

Who first discovered electromagnetic induction?

• Hans Christian Oersted

• Albert Einstein

• Michael Faraday

• Nikola Tesla

What does Faraday's Law relate to?

• The speed of light

• The mass of an object

• The rate of change of magnetic flux

• The resistance of a conductor

What is magnetic flux?

• The strength of a magnetic field

• The direction of a magnetic field

• The quantity of magnetic field penetrating an area

• The speed of a magnetic field

What does Lenz's Law help determine?

• The direction of the induced current

• The resistance of the circuit

• The magnitude of the magnetic field

• The speed of the conductor

What happens when a magnet moves toward a coil?

• The current stops flowing

• The magnetic field decreases

• The current flows in a direction to offset the increase

• The magnetic field remains constant

What is the formula for Faraday's Law?

• F = ma

• P = IV

• V = IR

• ε = -dΦ/dt

What is the purpose of an AC generator?

• To convert electrical energy into heat

• To produce rotation and convert energy types

• To store electrical energy

• To measure voltage

Why is electricity transmitted as AC?

• It is easier to store

• It allows for transformers to work effectively

• It is safer

• It is more efficient

What is the effect of a changing magnetic field on a coil?

• It creates a static current

• It induces a current in the coil

• It has no effect

• It decreases the resistance