Question

In an experiment of Meter Bridge, a null point is obtained at the centre of the bridge wire. When a resistance of 10 ohm is connected in one gap, the value of resistance in other gap is

• A. $10 \Omega$
• B. $5 \Omega$
• C. $\frac { 1 } { 5 } \Omega$
• D. $500 \Omega$

Answer 1

Answer: (A)

$10 \Omega$

Answer 2

Wheatstone bridge is balanced, therefore

$\frac { P } { Q } = \frac { R } { S }$ or $1 = \frac { 10 } { S }$ ⇒