Question #1

Two ends of a magnet create the magnetic field shown below.

(A)State which end is a north pole(B)state how a compass would point if placed

inside the field shown.

Question #1

Two ends of a magnet create the magnetic field shown below.

(A)State which end is a north pole(B)state how a compass would point if placed

inside the field shown.

N S

Question #2A coil of wire is wrapped around a metal bar, as shown below.

(A)Draw the magnetic field around the coil and through the

coil.(B)Indicate which end of the metal bar acts as magnetic north.

Question #2

Question #3Draw the magnetic field lines for the following

two situations.

A) Current is going down the page

B) Current is coming out of the page

Question #3Draw the magnetic field lines for the following

two situations.

A) Current is going down the page

B) Current is coming out of the page

Question #4Find the direction of the force each charge

experiences due to the magnetic field.

B

v

v

B

v

BB

vA)

C) D)

B)

Question #4Find the direction of the force each charge

experiences due to the magnetic field.

B

v

v

B

v

BB

vA)

C) D)

B)

Question #6The rod is pulled to the right. Find the

direction of the current and explain how you found it.

X X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X X

Question #6As the rod is pulled to the right, the magnetic flux

is increasing. To counteract that change, current is going to be induced that creates a magnetic field in the opposite direction of the external magnetic field. Using the right hand rule, the current should flow counter-clockwise.

X X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X XX X X X X X X X X X X

Question #8Alpha particles of charge q = + 2e and mass m =

6.6 x 10-27 kg are emitted from a radioactive source at a speed of 1.6 x 107 m/s. What magnetic field strength would be required to bend these into a circular path of radius r = 0.25 m?

Question #8Alpha particles of charge q = + 2e and mass m =

6.6 x 10-27 kg are emitted from a radioactive source at a speed of 1.6 x 107 m/s. What magnetic field strength would be required to bend these into a circular path of radius r = 0.25 m?

Question #9A square loop of wire with 250 turns is placed in

a uniform magnetic field pointing into the page of 0.020 T. Each side has a length of 5.0 cm and the total resistance of the entire wire is 0.35 Ω. The magnetic field is then turned off, taking 0.50 seconds to reach 0 T.

(A)Find the magnitude of the induced current.(B)Find the direction of the induced current.

X X X X X

X X X X X

X X X X X

X X X X X

Question #9

Question #10An electron passes between the plates of a parallel

plate capacitor with an electric field of 1200 N/C at a speed of 4.0 x 106 m/s. There is a magnetic field such that the electron continues moving through the capacitor with a constant velocity. Ignore the force of gravity.

(A)Draw a free body diagram. (B)Find the magnitude and direction of the magnetic

field.

E = 1200 N/C

e-

v

Question #10E = 1200 N/C

e-

v