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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 #2
A 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 #3
Draw 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 #3
Draw 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 #4
Find the direction of the force each charge experiences due to
the magnetic field.
A)
v
B)
v
B
B
C)
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D)
B
B
v
Question #4
Find the direction of the force each charge experiences due to
the magnetic field.
A)
v
B)
v
B
B
C)
v
D)
B
B
v
Question #6
The rod is pulled to the right. Find the direction of the current
and explain how you found it.
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Question #6
As 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.
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Question #8
Alpha 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 #8
Alpha 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 #9
A 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.
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Question #9
Question #10
 An 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.
v
e-
E = 1200 N/C
Question #10
v
e-
E = 1200 N/C