A cell supplies a current 1.2A through a...

A cell supplies a current 1.2A through a resistor `2 Omega`. The same cell supplies a current 0.4A through a `7 Omega` resistor. The internal resistance of the cell is

`0.1 Omega`

`0.3 Omega`

`0.5 Omega`

`0.7 Omega`

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CHETANA PUBLICATION-Current Electricity-Exercise

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