Question

In the circuit shown below, each battery is 5V and has an internal resistance of 0.2 ohm.

The reading in the ideal voltmeter V is .

Answer 1

All the eight batteries are in series
Total emf of eight betteries `= 6 xx 8 = 48V`
Total initialresistance of eight batteries `= 8 xxx 0.2 = 1.4 Omega`
current `t = (48)/(1.6) = 30A`
Reading of veltmeter = terminal potential different across one cell = mgf - voltage across initial resistance of time of one cell `= 6 - 30 xx 0.2 = 0 V`