Question

The charge of two identical metal spheres is 10 esu and 20 esu respectively. They were brought into contact with each other and moved to the initial distance again. What is the ratio of the initial and final applied balls between the two spheres?​

Answer 1

Answer:

Charge is conserved so

Q1+Q2=Q3+Q4

Q1 and Q2 are initial charges and Q3 and Q4 are charges after connecting them

Q3=Q4=Q ( they are identical )

So Q=

2

10+20

Q=15C

Ratio of forces =K(10)(20):K(15)(15)

8:9