In meter bridge shown, length AB for which deflection in galvanometer is zero will be .............

English

Gujarati

Hindi

3.Current Electricity

medium

In the meter bridge shown, the length $AB$ for which the deflection in galvanometer is zero will be ............. $cm$

A

$20$

B

$30$

C

$50$

D

$60$

Solution

$\frac{\mathrm{R}_{1}}{\mathrm{R}_{2}}=\frac{\ell}{100-\ell}$

$\Rightarrow \frac{15}{10}=\frac{\ell}{100-\ell}$

$\Rightarrow \ell=60 \mathrm{\,cm}$

Standard 12

Physics

Share

Similar Questions

On interchanging the resistances, the balance point of a meter bridge shifts to the left by $10\ cm$. The resistance of their series combination is $1\ k\Omega$. How much was the resistance on the left slot before interchanging the resistances? ……………… $\Omega$

hard

(JEE MAIN-2018)

Which is a wrong statement

medium

When Wheatstone bridge is said to be in balanced condition ?

medium

Resistance in the two gaps of a meter bridge are $10\, ohm$ and $30\, ohm$ respectively. If the resistances are interchanged the balance point shifts by………….. $cm$

medium

If in the experiment of Wheatstone's bridge, the positions of cells and galvanometer are interchanged, then balance points will

easy

(AIIMS-2017)