Answer to Question #111796 in Electricity and Magnetism for Frizz Glow

Question

Can anyone verify my answer ?
1. A conductor carrying a current is arranged so that current flows east. What direction is the magnetic field from the wire directly above the wire (away from the ground)?
A. no direction, there is no field
B.south
C. west
D. up
E. down
F. east
G. clockwise
H. counterclockwise
==> Clockwise

2. A positively charged particle is directly in front of you and moving to your right when it enters a magnetic field pointing upward. Which direction is the force on the positively charged particle from the magnetic field?
A. no direction, the force is 0
B. away from you
C. toward you
D. up
E. down
F. left
G. right
==> toward you

Answer 1

1.

On the picture the South direction is pointed toward the screen and the North direction is pointed away from the screen. According to the Biot–Savart law, the magnetic field from the wire directly above the wire is pointed toward the screen, thus, in the south direction.

2. Correct, the answer is toward you.