Download Magnetic Force (qelectron = 1

Magnetic Force (qelectron = 1.6 x10-19C)
1. A proton is moving along the positive x-axis with a speed of 1.50x105 m/s in a magnetic field of
2.00 T that is oriented along the positive y-axis.
a. Draw the picture and calculate the direction and magnitude of the electromagnetic force
on the proton.
b. What is the force if the proton moves along the y-axis?
2. An electron is moving along the positive x-axis with a speed of 1.50x105 m/s in a magnetic field
of 2.00 T that is oriented along the positive y-axis.
a. Calculate the direction and magnitude of the electromagnetic force on the electron.
b. What is the force if the electron moves along the y-axis?
3. An alpha particle (two protons & two neutrons) is moving along the positive x-axis with a
speed of 1.50x105 m/s in a magnetic field of 2.00 T that is oriented along the positive y-axis.
a. Calculate the direction and magnitude of the electromagnetic force on the alpha particle.
b. What is the force if the alpha particle moves along the y-axis?
4. If the magnetic field is uniform along the y-axis, describe the path of the particles in #1, 2 & 3.
5. Use the convention symbols (x, •, and ) to indicate the direction of the magnetic field created
by electric currents shown in the following diagram at each location A, B, C, D, E & F.
I
E
C
A
B
E
D
F
D
F
I
B
A
C
6. How do the magnetic fields compare at each of the locations A, B, C, D, E & F?
7. The direction of the current is reversed. Sketch the corresponding diagrams and answer number 5
and 6 again