Tiêu đề Physics - XII - Moving Charges _ Magnetism - Objective Type Questions.ppt ✅

MOVING CHARGES & MAGNETISM
OBJECTIVE TYPE QUESTIONS
1. Magnetic lines of force due to a straight conductor carrying current are 1) Straight lines 2) Elliptical 3) Circular 4) Parabolic
2. A magnetic field exerts no force on 1) A stream of electrons 2) A stream of protons 3) Unmagnetised piece of iron 4) Stationary charge