Electromagnetism

Question 1

Assuming a current is flowing, what increases the strength of the magnetic field of a coiled electrical wire?

Revolt · Accepted Answer

adding more coils to the wire

Question 2

Juan makes an adjustment to an electromagnet that causes the electromagnet to lose some of its strength. What did Juan most likely do?

Revolt · Accepted Answer

He reduced the number of loops in the wire.

Question 3

A compass needle normally points toward Earth’s magnetic pole, which is near the North Pole. Which best explains why the needle moves away from the pole when it comes close to a current-carrying wire?

Revolt · Accepted Answer

Magnetism surrounding the wire draws the needle toward the wire.

Question 4

The diagram shows a setup for inducing a current in a wire.

Revolt · Accepted Answer

moving the wire downward through the magnetic field

Question 5

Which is produced around a wire when an electrical current is in the wire?

Revolt · Accepted Answer

magnetic field

Question 6

What is the term for producing a current by moving a wire through a magnetic field?

Revolt · Accepted Answer

electromagnetic induction

Question 7

What is a solenoid?

Revolt · Accepted Answer

a current-carrying wire with many coils

Question 8

If the current in each wire is the same, which wire produces the strongest magnetic field?

Revolt · Accepted Answer

a 1-mm-thick coiled wire with ten loops

Question 9

What is the Compact Muon Solenoid used to study?

Revolt · Accepted Answer

the particles emitted when atoms collide

Question 10

A current is induced in a wire by moving the wire through a magnetic field. Which is one factor that affects the direction of the current?

Revolt · Accepted Answer

the direction in which the wire moves

Electromagnetism Answers

More from this Course

TRY EDGENUITY HACKS