Quiz about AP2 Magnetism Quiz

Question 1

The diagram shows a coil of wire connected to a battery. The N-pole of this coil is closest to

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 2

Which particle would produce a magnetic field?

Accepted Answer

A moving charged particle

Answer

A stationary charged particle

Answer

A neutral particle moving in a straight line

Answer

A neutral particle moving in a circle

Question 3

In the diagram, when the conventional current is flowing in the direction indicated by the arrow, the direction of the force in the wire will be

Accepted Answer

out of this screen

Answer

toward the south pole

Answer

toward the north pole

Answer

into this screen

Question 4

An electron in a magnetic field travels at constant speed in the circular path represented in the diagram. Which arrow represents the direction of the net force acting on the electron when the electron is at position A?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 5

The field around a permanent magnet is caused by the motions of

Accepted Answer

electrons

Answer

protons

Answer

nucleons

Answer

neutrons

Question 6

In the diagram, electrons flowing through the wire as shown will cause the wire to move toward the

Accepted Answer

top of this screen

Answer

bottom of this screen

Answer

south pole

Answer

north pole

Question 7

The diagram represents an electromagnet. The arrows indicate the direction of the magnetic field. What is the polarity of K?

Accepted Answer

north

Answer

positive

Answer

negative

Answer

south

Question 8

A beam of electrons is directed from point A toward point B between the poles of the magnet. As the beam passes between J and K, it will be deflected

Accepted Answer

out of this screen

Answer

toward J

Answer

toward K

Answer

into this screen

Question 9

If the voltage of the power source is increased, the magnitude of the flux density between the poles of the magnet will

Accepted Answer

increase

Answer

decrease

Answer

remain the same

Question 10

An electron traveling at a speed (V) in the plane of this screen enters a uniform magnetic field. Which diagram best represents the condition under which the electron will experience the greatest magnetic force as it enters the magnetic field?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 11

A compass is located at point X near a bar magnet as shown in the diagram. Which diagram shows the proper direction of the compass needle?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 12

The diagram represents the magnetic lines of force around a bar magnet. At which point is the magnitude of the magnetic field strength of the bar magnet the greatest?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 13

The diagram shows the magnetic field lines between two magnetic poles, A and B. Which statement describes the polarity of magnetic poles A and B?

Accepted Answer

A is a north pole and B is a south pole.

Answer

A is a south pole and B is a north pole.

Answer

Both A and B are north poles.

Answer

Both A and B are south poles.

Question 14

When two ring magnets are placed on a pencil, magnet A remains suspended above magnet B, as shown. Which statement describes the gravitational force and the magnetic force acting on magnet A due to magnet B?

Accepted Answer

The gravitational force is attractive and the magnetic force is repulsive.

Answer

The gravitational force is repulsive and the magnetic force is attractive.

Answer

Both the gravitational force and the magnetic force are attractive.

Answer

Both the gravitational force and the magnetic force are repulsive

Question 15

The diagram represents the magnetic field around point P, at the center of a current carrying wire. What is the direction of conventional current in the wire?

Accepted Answer

from A to B

Answer

from B to A

Answer

From P into the screen

Answer

From P out of the screen

Question 16

Electrons are flowing in a conductor as shown in the diagram. What is the direction of the magnetic field at point P?

Accepted Answer

out of this screen

Answer

toward the top of this screen

Answer

toward the bottom of this screen

Answer

into this screen

Question 17

Each diagram represents a cross section of a long, straight, current-carrying wire with conventional current into this screen. Which diagram best represents the magnetic field near the wire?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 18

The diagram shows an electromagnet made from a nail, a coil of insulated wire, and a battery. The south pole of the electromagnet is located closest to point

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 19

The diagram shows an electron current in a wire loop. What is the direction of the magnetic field at the center of the loop?

Accepted Answer

out of this screen

Answer

into this screen

Answer

clockwise

Answer

counterclockwise

Question 20

The diagram shows a conductor carrying a current in which the electron flow is from left to right. The conductor is located in a magnetic field which is directed into this screen. The direction of the magnetic force on the conductor will be

Accepted Answer

toward the bottom to this screen

Answer

into this screen

Answer

out of this screen

Answer

toward the top of this screen

Question 21

Each of the figures shows the path of a charged particle moving in the plane of the screen in a magnetic field that is perpendicular to the screen. If mass, speed and charge are the same, in which case does the field have the greatest magnitude?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 22

An object with charge -q is in motion near a wire that has a current I to the right. At the instant shown in the figure, the object is traveling to the right with speed v. Both the wire and the motion of the object are in the plane of the page. Which of the following statements is true about the force on the object due to the current I at the instant shown?

Accepted Answer

The force is directed toward the bottom of this screen.

Answer

The force is directed toward the top of this screen.

Answer

The force is directed toward the right.

Answer

There is no force on the object due to the current.

Question 23

The gray rectangle in the figure represents a region of uniform magnetic field directed out of the screen. A square loop of wire of side s is in the plane of the screen and is pulled at constant speed v through the field. Which of the following could show the current I in the loop as a function of the position of the right edge of the loop?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 24

Four infinitely long wires are arranged as shown in the accompanying figure end-on-view. All four wires are perpendicular to the plane of the screen and have the same magnitude of current I. The conventional current in the wire in the upper right hand corner is directed into the plane of the screen. The other conventional currents are out of the plane of the screen. Point P is a distance a from all four wires. What is the total magnetic field at point P?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

zero

Question 25

A loop of wire is connected to an ammeter, as shown, and held in place. The ammeter has a scale with zero in the middle and a needle that moves away from zero in either direction to measure the magnitude and direction of any current in the loop. A bar magnet is held above the center of the loop and released from rest. Which of the following best describes the action of the ammeter needle as the magnet falls through the loop?

Accepted Answer

The ammeter needle deflects in one direction as the north end of the magnet approaches the loop, returns to zero when the center of the magnet is in the loop, and deflects in the other direction when the south end of the magnet is moving away from the loop.

Answer

The ammeter needle remains at zero.

Answer

The ammeter needle deflects in one direction as the magnet approaches, passes through, and moves away from the loop.

Answer

The ammeter needle deflects in one direction as the north end of the magnet approaches the loop, returns to zero when the center of the magnet is in the loop, and deflects in the same direction when the south end of the magnet is moving away from the loop.

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