Question

.
A cell of e.m.f. E volt, and internal resistance
ohm is supplying a current of i ampere to
an external circuit, then the terminal potential
difference, is :
(a) E
(b) E-ir
( E+ ir
(d) E+- ir​

Answer 1

Answer:

For external ,

Potential difference is =E+ir

( When giving current to a cell)

And when taking current then = E+ir