A 10 V battery with internal resistance and a 15V battery with internal resistance are connected in parallel to a voltmeter (see figure). The reading in the voltmeter will be close to :
11.9 V
12.5 V
13.1 V
24.5 V
As we discussed in
In closed loop -
- wherein
Current in the circuit
Reading of the voltmeter
Option 1)
11.9 V
The option is incorrect
Option 2)
12.5 V
The option is incorrect
Option 3)
13.1 V
The option is correct
Option 4)
24.5 V
The option is incorrect