Answer to Question #55901 in Electricity and Magnetism for kola

Question

19 If the steady current in a wire is coming directly toward you, the magnetic field lines
point radially outward
radially inward
circle the wire in the clockwise direction
circle the wire in the counter clockwise direction

20 One end of a simple rectangular wire-loop current balance is inserted into a solenoid. A force of
3.0×10−3N
is found to act on this end when a current of 2.0 A is flowing in it. If the length of the conductor forming the end of the the wire-loop is 0.
0.043T
0.26T
0.43T
0.015T