Question

Two identical conducting spheres carry charges of +3 coulombs (3C) and –1 coulombs (-1C), respectively. If the spheres are brought into contact and separated, the final charge on each is: a. +1C (b) +2C (c) –1C (d) –2C

Answer 1

Net charge /2

Q1 = 3 C

Q2= -1 C

Net charge = Q1 +Q2= 3 + (-1) = 2 C

2C/2 = 1C

Answer: +1C (option a )