question_answer

In the shown figure a battery (ideal) is joined between terminals A and B having EMF=E. Find the current supplied by the battery :

A) \[\frac{8E}{R}\]

B) \[\frac{8E}{3R}\]

C) \[\frac{4E}{R}\]

D) \[\frac{4E}{3R}\]

Correct Answer: B

Solution :

As potential of points \[{{O}_{1}},{{O}_{2}},{{O}_{3}}\]and \[{{O}_{4}}\] is same

Hence, Equivalent circuit.

\[\Rightarrow {{R}_{eq.}}=\frac{3R}{8}\]           Hence, \[\therefore \,\,I=\frac{8E}{3R}\]