In a metre bridge [Fig. 3.27], the balance point is found to be at 39.5 cm from the end A, when the resistor Y is of 12.5 Ω . Determine the resistance of X. Why are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips?

Question

Philoid · Accepted Answer

The diagram is shown below:

Balance Point from end A, l₁ = 39.5 centimeter

Resistance of resistor Y = 12.5 Ω

Balance condition is given by,

⇒ X = 8.2 ohm

In a metre bridge [Fig. 3.27], the balance point is found to be at 39.5 cm from the end A, when the resistor Y is of 12.5Ω.Determine the resistance of X. Why are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips?

In a metre bridge [Fig. 3.27], the balance point is found to be at 39.5 cm from the end A, when the resistor Y is of 12.5Ω.
Determine the resistance of X. Why are the connections between resistors in a Wheatstone or meter bridge made of thick copper strips?