Q.

The radii of two metallic spheres P and Q are r1 and r2 respectively. They are given the same charge. If r1 > r2 Then on connecting them with a thin wire, the charge will flow:

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a

From P to Q

b

From Q to P

c

Neither the charge will flow from P to Q nor from Q to P

d

The information is incomplete

answer is D.

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Detailed Solution

Since charge flows from high potential to lower potential.If positive charge is given, then V1r2So positive charge flows from Q→PIf negative charge is given, then V1 > V2So negative charge flows form P→Q.Since it is not given that whether the charge given is positive or negative, hence the information is incomplete.
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The radii of two metallic spheres P and Q are r1 and r2 respectively. They are given the same charge. If r1 > r2 Then on connecting them with a thin wire, the charge will flow: