First slide

ammeter

Question

In the circuit, the galvanometer G shows zero deflection. If the batteries A and B have negligible internal resistance, the value of the resistor R will be :

Moderate

A

200 $Ω$
B

100 $Ω$
C

500 $Ω$
D

1000 $Ω$

Solution

$I = \frac{2}{R} = \frac{12 - 2}{500} \Rightarrow R = 100 Ω$

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