Electrostatics Question 790

Question: Two conducting spheres of radii $ R _{1} $ and $ R _{2} $ having charges $ Q _{1} $ and $ Q _{2} $ respectively are connected to each other. There is

Options:

A) no change in the energy of the system

B) an increase in the energy of the system

C) always a decrease in the energy of the system

D) a decrease in the energy of the system unless $ Q _{1}R _{2}=Q _{2}R _{1} $

Show Answer

Answer:

Correct Answer: D

Solution:

[d] When$ \frac{Q _{1}}{R _{1}}-\frac{Q _{2}}{R _{2}} $ ; current will flow ii connecting wire so that energy decreases in the form of head through the connecting wire



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