General Physics 2 Summative Test

What would happen if I moved a bar magnet in and out of a coil of copper wire?

• Electric current would disappear

• Electric current will flow through the wire

• It would produce a gravitational field

• The magnet would explode

What type of current is produced by a battery?

What creates a magnetic field?

• charged particles that do not move

• gravity

• moving electric charges

• an isolated magnetic pole

Voltage can be induced in a wire by _______________.

• moving the wire near a magnet

• changing the current in a nearby wire

• moving a magnet near the wire

• all of these

What device was used in conducting various experiments such as with magnetically induced emf by Faraday?

A vector quantity which defined as the dot product of the magnetic field and the area vector.

If the magnetic flux through an area bounded by a closed conducting loop changes with time, a current and an emf are produced in the loop, what do you call this process?

Faraday's law of induction, the induced emf is proportional to the ___________ of magnetic flux through the coil.

From the definition of magnetic flux, which of the following is the SI unit for magnetic flux?

• Weber

• Tesla

• Coulomb

• Newton

In Lenz' law, what is the direction of induced current? It always______

• opposes the cause.

• equal to cause that produces it

• remains same as that of cause

• directs the cause.