1. Tardigrade
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  4. 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?

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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 $A$?

AMUAMU 2015Electric Charges and Fields

Solution:

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