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Physics-

General

Easy

Question

Two cells of emfs E₁ and E₂ are connected in series in a circuit Let r₁ and r₂ be the internal resistance of the cells Find the current through the circuit

$\frac{E_{1} + E_{2}}{r_{1} + r_{2}}$
$\frac{E_{1}}{r_{1} + r_{2}}$
$\frac{E_{2}}{r_{1} + r_{2}}$
$(E_{1} + E_{2}) (r_{1} + r_{2})$

The correct answer is: $fraction numerator E subscript 1 end subscript plus E subscript 2 end subscript over denominator r subscript 1 end subscript plus r subscript 2 end subscript end fraction$

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