First slide

meter bridge

Question

If the balance point is obtained at the $25^{t h}$ cm in a metre bridge the resistances in the left and right gaps are in the ratio of

Easy

A

7 : 13
B

13 : 7
C

9 : 11
D

1 : 3

Solution

Using Wheatstone principle $\frac{P}{Q} = \frac{R}{S} = \frac{l}{100 - l}$
$= \frac{25}{100 - 25} = \frac{25}{75} = \frac{1}{3}$

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