Question

When sphere C is brought in contact with first sphere then find the charge left on sphere A and sphere C respectively

• A. $6.5\times {10}^{-7}C,0C$
• B. $3.25\times {10}^{-7}C,3.25\times {10}^{-7}C$
• C. $3.25\times {10}^{-7}C,6.5\times {10}^{-7}C$
• D. $0C,6.5\times {10}^{-7}C$

Answer 1

The correct option is B $3.25\times {10}^{-7}C,3.25\times {10}^{-7}C$

They will transfer charge until their potential become same. SInce they are identical they will distribute the charge equally

$q_C=q_A=\frac{Q}{2}=\frac{6.5\times {10}^{-7}}{2}=3.25\times {10}^{-7}C$