In a typical Wheatstone's network, the resistances in the cyclic order are `P=10 Omega, Q=5 Omega, S=4 Omega and R=4 Omega`. For balancing the bridge, a resistance of

Options

A. `10 Omega` should be connected in series with P
B. `10 Omega` should be connected in parallel with P
C. `10 Omega` should be connected in series with Q
D. `10 Omega` should be connected in parallel with Q

Answer

B

Explanation

`(P)/(Q)=(R )/(S) " Make " P= 5 Omega`