A cell supplies a current of 1.2 A through two rsistors each of 2Ω co

1.	A cell supplies a current of 1.2 A through two rsistors each of 2Ω connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate: i) the internal resistance, and (ii) e.m.f. of the cell.
Answer» A cell supplies a current of 1.2 A through two rsistors each of $2 Ω$ connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate: i) the internal resistance, and (ii) e.m.f. of the cell.

A cell supplies a current of 1.2 A through two rsistors each of 2Ω connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate: i) the internal resistance, and (ii) e.m.f. of the cell.

Answer»

A cell supplies a current of 1.2 A through two rsistors each of $2 Ω$ connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate:

i) the internal resistance, and

(ii) e.m.f. of the cell.

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A cell supplies a current of 1.2 A through two rsistors each of 2Ω connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate: i) the internal resistance, and (ii) e.m.f. of the cell.

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