Two identical small conducting balls B _ 1 and B _ 2 are given -7 pC and +4 pC charges…
Physics · Class 12 · CBSE — Electric Charges and Fields
Two identical small conducting balls \({B}_{1}\) and \({B}_{2}\) are given -7 pC and +4 pC charges respectively. They are brought in contact with a third identical ball \({B}_{3}\) and then separated. If the final charge on each ball is -2 pC, the initial charge on \(B_{3}\) was
- \(-2 {pC}\)
- -3 pC
- -5 pC
- -15 pC
Answer
(B) -3 pC
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The electric field required to keep a water drop of mass m just to remain suspended, when charged with one…
- A small metallic sphere S of charge +q is placed exactly at a point midway between two-point charges A (+ Q )…
- The electric flux through a closed Gaussian surface depends upon
- Which one of the following is not a scalar quantity?
- Four objects W, X, Y and Z, each with charge +q are held fixed at four points of a square of side d as shown…
- In air the value of the total electric flux emitted from the unit positive charge is
- For coulomb force to be operative the least size of the atom will be
- When 10 19 electrons are removed from a neutral metal plate, the electric charge on it is
More Electric Charges and Fields questions · Browse all practice questions