Q. What happens to the force between magnetic poles when their pole strength and the distance between them are both doubled
A) Force increases to two times the previous value
B) No change
C) Force decreases to half the previous value
D) Force increases to four times the previous value
Explanation
(b) $F \propto \frac{m_{1}m_{2}}{r^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.