Electromagnetic Induction

Question 1

The table lists information about four devices.Which lists the devices in order from greatest magnetic field strength to weakest?

Revolt · Accepted Answer

X, Y, Z, W

Question 2

When the north pole of a bar magnet is moved into a solenoid, the needle on a galvanometer attached to the solenoid moves to the left, indicating that a current is produced. The magnet is then pulled out at a faster speed.What will be the result?

Revolt · Accepted Answer

a larger current in the opposite direction

Question 3

A wire has a current that flows to the right.Which describes the magnetic field produced by the current?

Revolt · Accepted Answer

circles around the wire that go in at the bottom of the screen and moves in a clockwise direction

Question 4

Tonya is modeling the discovery of electromagnetic induction. Which procedure should she use?

Revolt · Accepted Answer

moving a magnet into a coil of wire in a closed circuit

Question 5

Which will produce a magnetic field?

Revolt · Accepted Answer

a wire carrying a current

Question 6

Which changes will cause an increase in the magnetic field of a solenoid? Check all that apply.using more wire loopsusing fewer wire loopsusing a larger currentusing a smaller currentincreasing the spacing between loopsdecreasing the spacing between loops

Revolt · Accepted Answer

using more wire loops; using a larger current; decreasing the spacing between loops

Question 7

An electric current is produced using a bar magnet and a solenoid.Which changes will cause a decrease in the electric current produced? Check all that apply.using more wire loops in the solenoidusing fewer wire loops in the solenoidusing a stronger magnetmoving the solenoid instead of the magnetmoving the magnet more slowly

Revolt · Accepted Answer

using fewer wire loops in the solenoid; moving the magnet more slowly

Question 8

Which change would reverse the direction of the electric current generated through electromagnetic induction?

Revolt · Accepted Answer

using the opposite pole of the magnet

Electromagnetic Induction Answers

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