First slide

meter bridge

Question

AB is a wire of uniform resistance. The galvanometer G shows no current when the length AC = 20 cm and CB = 80 cm. The resistance R is equal to

Easy

A

$2 Ω$
B

$8 Ω$
C

$20 Ω$
D

$40 Ω$

Solution

Using balanced condition, $\frac{R}{80} = \frac{AC}{BC} = \frac{20}{80} \Rightarrow R = 20 Ω$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App