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In a wheatstone bridge(see fig.), resistances P and Q are approximately equal. When R=400 , the bridge is equal. When R=400, the bridge is balanced. On inter-changing P and Q, the value of R, for balance, is 405 . The value of x is closed to:

(a)

403.5 ohm

(b)

404.5 ohm

(c)

401.5 ohm

(d)

402.5 ohm



Question ID - 50317 | SaraNextGen Top Answer

In a wheatstone bridge(see fig.), resistances P and Q are approximately equal. When R=400 , the bridge is equal. When R=400, the bridge is balanced. On inter-changing P and Q, the value of R, for balance, is 405 . The value of x is closed to:

(a)

403.5 ohm

(b)

404.5 ohm

(c)

401.5 ohm

(d)

402.5 ohm

1 Answer
127 votes
Answer Key / Explanation : (d) -

402.5 ohm

127 votes


127