Initially, sphere A has charge of -50 e and sphere B has a charge of +20 e. The spheres are made of conducting material and are identical in size. If the spheres touch each other, what is the resulting charge on sphere A?

Question

Initially, sphere A has charge of -50 e and sphere B has a charge of +20 e. The spheres are made of conducting material and are identical in size. If the spheres touch each other, what is the resulting charge on sphere A? (A) -15 e (B) -30 e (C) +30 e (D) +15 e

Tardigrade Admin · Accepted Answer

As sphere touch net charge will be -30 e, which will get divided as it is separated. Therefore, charge on sphere A is -15 e.

Q. Initially, sphere $A$ has charge of $- 50 e$ and sphere $B$ has a charge of $+ 20 e$ . The spheres are made of conducting material and are identical in size. If the spheres touch each other, what is the resulting charge on sphere $A$ ?

-15 e

-30 e

+30 e

+15 e

As sphere touch net charge will be $- 30 e$ , which will get divided as it is separated. Therefore, charge on sphere $A$ is $- 15 e$ .

Q. Initially, sphere A has charge of −50e and sphere B has a charge of +20e. The spheres are made of conducting material and are identical in size. If the spheres touch each other, what is the resulting charge on sphere A?