Question 1

The intensity of cosmic rays bombarding the Earth's surface is largest at the

Accepted Answer

A) poles. 
B) mid-latitudes. 
C) equator. 
A) poles. 
B) mid-latitudes. 
C) equator.

Question 2

Magnetic field lines about a current-carrying wire

Accepted Answer

A) extend radially from the wire. 
B) circle the wire in closed loops. 
C) Choices A and B are both correct. 
D) None of the above choices are correct. 
A) extend radially from the wire. 
B) circle the wire in closed loops. 
C) Choices A and B are both correct. 
D) None of the above choices are correct.

Question 3

Which pole of a compass needle points to a south pole of a magnet?

Accepted Answer

A) north pole 
B) south pole 
C) both of these 
A) north pole 
B) south pole 
C) both of these

Question 4

Magnetic domains normally occur in

Accepted Answer

A) iron. 
B) copper. 
C) silver. 
D) all of these 
E) none of these 
A) iron. 
B) copper. 
C) silver. 
D) all of these 
E) none of these

Question 5

Which force field can increase a moving electron's speed?

Accepted Answer

A) only an electric field 
B) only a magnetic field 
C) either an electric or magnetic field 
D) none of these 
A) only an electric field 
B) only a magnetic field 
C) either an electric or magnetic field 
D) none of these

Exam 24: Magnetism

The intensity of cosmic rays bombarding the Earth's surface is largest at the

Magnetic field lines about a current-carrying wire

Which pole of a compass needle points to a south pole of a magnet?

Magnetic domains normally occur in

Which force field can increase a moving electron's speed?

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