Question

A large insulated sphere of radius ' r ', charged with ' Q ' units of electricity, is placed in contact with a small insulated uncharged sphere of radius ' R ' and is then separated. The charge on the smaller sphere will now be

• A. \( Q(r + R) \)
• B. \( Q(r - R) \)
• C. \( \frac{Q}{r+R} \)
• D. \( \frac{QR}{R+r} \)

Hint:

- Charge distributes proportional to radius - Use conservation of charge + ratio

Answer 1

The Correct Option is D