ou have a battery marked 600 V When you draw a current of 03

ou have a battery marked \\\"6.00 V.\\\" When you draw a current of 0.381 A from it, the potential difference between its terminals is 5.11 V. What is the potential difference when you draw 0.543 A? = _______________ V

Solution

Here,

let the internal resistance of the battery is r

E = 6 V

I1 = 0.381 A

V = 5.11 V

as V = E - I1 * r

6 = 5.11 - 0.381 * r

r = 2.34 Ohm

Now , for the second case

V = 6 - 2.34 * 0.543

V = 4.73 V

the potential across the terminals is 4.73 V