- A cell supply a current i through a resistor of resistance r and a current I through a resistor R then find the internal resistance of the cell.
Asked by Jalajkhede11
24th July 2018,
10:18 AM
Answered by Expert
Answer:
'i' is the current floing from positive terminal to negative terminal in external circuit.
Let E be the e.m.f of cell.
'r' is the internal resistance of cell.
Direction of 'ir' is opposite to that of the e.m.f of cell 'E'.
Thus the potential difference 'V' is given as,
V=E - ir ...(1)
Answered by Expert
24th July 2018,
11:59 AM
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