A Wheatstone bridge has resistors and in one branch and and in the other branch

PHYSICS · Single correct · CBSE · Physics · Current Electricity · Current Electricity

Problem

A Wheatstone bridge has resistors

120\,\Omega

and

80\,\Omega

in one branch and

150\,\Omega

and

R\,\Omega

in the other branch. Determine the value of

R

so that the bridge is balanced. (a)

225\,\Omega

(b)

64\,\Omega

(c)

100\,\Omega

(d)

90\,\Omega