Current Electricity Charging Discharging Of Capacitors Question 620

Question: Two resistances $ R _{1} $ and $ R _{2} $ are joined as shown in the figure to two batteries of e.m.f. $ E _{1} $ and $ E _{2} $ . If $ E _{2} $ is short-circuited, the current through $ R _{1} $ is

[NDA 1995]

Options:

A) $ E _{1}/R _{1} $

B) $ E _{2}/R _{1} $

C) $ E _{2}/R _{2} $

D) $ E _{1}/(R _{2}+R _{1}) $

Show Answer

Answer:

Correct Answer: A

Solution:

After short circuiting, $ R _{2} $ becomes meaningless.