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
