Question

In a Wheatstone bridge (see figure) Resistance P and Q are approximately equal. When R = 400 Ω, the bridge is balanced. On interchanging P and Q, the value of R, for balance is 405 Ω. The value of X is close to:
(A) 401.5 ohm
(B) 404.5 ohm
(C) 403.5 ohm
(D) 402.5 ohm

Answer 1

Answer:

(a)

Explanation:

a is the answer because a is the answer