Current Electricity Charging Discharging Of Capacitors Question 715
All wires have same resistance and equivalent resistance between A and B is R. Now keys are closed, then the equivalent resistance will decrease
Options:
A) $ \frac{7R _{0}}{3} $
B) $ \frac{7R _{0}}{9} $
C) $ 7R _{0} $
D) $ \frac{R _{0}}{3} $
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Answer:
Correct Answer: B
Solution:
[b] If each resistor is r, then $ R _{0}=3r\text{ or }r=\frac{R _{0}}{3} $ When keys are closed, then
BETA
