Question

The force of attraction between two unlike magnetic poles varies inversely as the square
or distance between them. When the distance between two poles is 10 cm, the force o
attraction is 2 dynes. Find the force of attraction between the two poles when the distance
between them is 5 cm.​

Answer 1

Answer:

By cross multiplication

10=2 so,

5=x,

then...

x=5•2÷10

x=1 dyne