First slide

Pontial due to

Question

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:

Easy

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

Solution

Since charge flows from high potential to lower potential.
If positive charge is given, then $V_{1} < V_{2} as r_{1} > r_{2}$
So positive charge flows from $Q \to P$
If negative charge is given, then V₁ > V₂
So negative charge flows form $P \to Q$ .
Since it is not given that whether the charge given is positive or negative, hence the information is incomplete.

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