Question

Two metal spheres of radius R and 2R having charges 100 mC & 50 µC respectively are touched with each other then-

• A. 50 µC charges moves from small to big sphere
• B. 50 µC charges moves from big to small sphere
• C. No conduction takes place
• D. Each sphere has 75 µC charge

Answer 1

Answer: (A)

50 µC charges moves from small to big sphere

Answer 2

Charge distribution µ radius

q _total = 100 + 50 = 150 mC

$\mathrm { q } _ { 1 } ^ { \prime }$ : $q _ { 2 } ^ { \prime }$ = R₁ : R₂ = 1 : 2

(50 mC shifted from small to big sphere)