Q7. If a wire having current 10A has a 3T magnetic field, what will be the magnetic field at a point from the wire at double the distance? Physics — Magnetism and Electromagnetic Induction Past Paper — Question 7 of 591A. Reduces by factor 2 B. Becomes double C. Reduces by factor 4 D. Becomes triple Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →