A cell of emf 1.5V is connected in series with a 1Ω res...
A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell
4.0Ω
3.0Ω
1.5Ω
1.0Ω
Correct answer is A
r = EI−R
r = 1.50.3−1
r = 4Ω
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