PHYSICS · Single correct · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism
Problem
In an experiment, a straight conductor carrying current causes the nearby compass needle to deflect towards the east. If the direction of the current in the same conductor is reversed, what will be the new deflection of the compass needle?
(a) towards north
(b) exactly along north–south (no deflection)
(c) towards west
(d) still towards east