Question 1

What is the direction of the magnetic force on the proton?
/ 1) +x
2) –x
3) +y
4) –y
5) +z
6) –z
7) zero magnitude

Question 2

An electron is traveling in the –y direction. At its location there is a magnetic field in the –z direction.
What is the direction of the magnetic force on the electron? / 1) +x
2) –x
3) +y
4) –y
5) +z
6) –z
7) zero magnitude

Question 3

A proton traveling in the –x direction experiences a magnetic force in the
–z direction.
What is a possible direction of the magnetic field at the location of the proton? / 1) +x
2) –x
3) +y
4) –y
5) +z
6) –z
7) zero magnitude

Question 4

A proton moving in the +y direction experiences a magnetic force in the –x direction.

/ What is the direction of conventional current in the wire?
1) +y
2) –y
3) I = 0
4) Not enough information

Question 5

What is the direction of magnetic force on the wire?
/ 1) +x
2) –x
3) +y
4) –y
5) +z
6) –z
7) zero magnitude /

Question 6

/ What are the forces on the moving POSTIVE charge?
FelecFmag
1)UPUP
2)DOWNDOWN
3)UPDOWN
4)DOWNUP

Question 7

/ What are the forces on the moving NEGATIVE charge?
FelecFmag
1)UPUP
2)DOWNDOWN
3)UPDOWN
4)DOWNUP

Question 8

/ Particle of charge +q travels in a straight line at constant speed. Which is true?
1) qE = qvB
2) E = B
3) E = q / (vB)
4) qE = qB

Question 9


E = 1000 V/m, B = 0.5 T, q = -3.2e–19 C / Particle travels in a straight line at constant speed. What is the velocity of particle?
1) 2000 m/s
2) 0.5 m/s
3) 500 m/s
4) 1000 m/s
5) 1.0 m/s

Chapter 21 ClickerB.doc1