Question

28. What resistance should be added in the arm RS of Wheatstone bridge to balance the bridge R 109 (a) 90 92 in parallel (b) 30 12 in parallel (c) 112 in series (d) None of these​

Answer 1

Answer:

28. What resistance should be added in the arm RS of Wheatstone bridge to balance the bridge R 109 (a) 90 92 in parallel (b) 30 12 in parallel (c) 112 in series (d) None of these

Explanation:

ans-- d none of these

Answer 2

(d) None of these​

The resistances of the four arms R and S in a Wheatstone's bridge are 30 ohms and 90 ohms, respectively.

Wheatstone bridge, otherwise called the obstruction span, ascertains the obscure opposition by adjusting two legs of the scaffold circuit. One leg incorporates the part of the obscure obstruction. The Wheatstone Bridge Circuit involves two known resistors, one obscure resistor and one variable resistor associated as a scaffold. This scaffold is truly dependable as it gives exact estimations. A Wheatstone span circuit comprises four arms of which two arms comprise known protections while the other two arms comprise an obscure opposition and a variable obstruction.