CapacitanceHard

Question

The radii of two metallic spheres are 5 cm and 10 cm and both carry equal charge of 75μC. If the two spheres are shorted then charge will be transferred -

Options

A.25 μC from smaller to bigger   
B.25 μC from bigger to smaller
C.50 μC from smaller to bigger
D.50 μC from bigger to smaller

Solution

(A) Qt = Q1 + Q2 = 150μC
         ⇒    Q1′ = 50μC
Q2′ = 100μC
25μC charge will flow from smaller to bigger sphere .

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