Question

Four resistors of resistance 20Ω, 20Ω, 20Ω and 30 Ω form a Wheatstone’s network. What shunt is required across 30Ω resistor to balance the bridge? a) 10Ω b) 30Ω c) 20Ω d) 60Ω

Answer 1

Answer:

refer the answer in diagram.

Answer 2

UNDERSTANDING CONCEPT :-

• Use the equation for the equivalent resistance of two resistors connected in parallel. Also, use the conditions that will bring the Wheatstone's bridge in the balanced condition. Determine the equivalent resistance of the two resistors connected in parallel as given in the question and substitute it in the balanced condition of Wheatstone's bridge.

SOLUTION :-

• PLEASE CHECK THE ATTACHED FILE