Magnetism Question 182
Question: What happens to the force between magnetic poles when their pole strength and the distance between them are both doubled
[CPMT 1978, 80, 84, 85; MP PET 2005]
Options:
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
Show Answer
Answer:
Correct Answer: B
Solution:
$ F\propto \frac{m _{1}m _{2}}{r^{2}} $
BETA
