Question

iv) Four resistances 10 , 10 12 10 2 and
15 2 form a Wheatstone's network. What
shunt is required across 15 12 resistor to
balance the bridge
(A) 10 2 (B) 1522
(C) 2022 (D) 302​

Answer 1

Answer:

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Answer 2

Given:

Four resistances 10 Ω, 10 Ω, 12 Ω and 10 Ω form a Wheatstone’s network.

To Find:

What shunt is required across 15 Ω resistor to balance the bridge

Solution:

P = 10      Q = 10      R = 12       S = 15 + R

p/q=r/s

10/10=12/15+r

r=12/15

=0.8

The resistor of resistance 0.8 ohms must be connected in parallel to resistor S to balance the circuit.