Question

Two identical spheres P and Q have charge on each as 6×10^-7 they are placed half meter away from each other .Another identical sphere R having no initial charge is first touched with sphere P and then with Q sphere R is then with drawn. Find the new charge on P and Q​

Answer 1

Answer:

Two identical metallic spheres are charged with 10 and -20 units of charge. If both the spheres are first brought in contact with each other and then are placed to their previous position. What will be the ratio of the force in the two situations?

where - sign represents the fact that they are attracted to each other

since they are metals of same kind hence when touched, their charges will equalize and each one will have 10−202=−5" role="presentation" style="margin: 0px; padding: 0px; outline: 0px; display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 14px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; position: relative;">10−202=−510−202=−5units of charge.

now if they are moved back to their initial are 2.