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Series Combination of Cells

If G, rA an...

Question

If G, $r_{A}$ and $r_{V}$ denote the internal resistances of a galvanometer, an ammeter and a voltmeter respectively, the correct relationship among them is

A

G < r_{A} < r_{V}

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B

r_{A} < r_{V} < G

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C

r_{A} < G < r_{V}

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D

r_{V} < r_{A} < G

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Solution

The correct option is A $r_{A} < G < r_{V}$
$r_{A} < G < r_{V} ∵$ Ammeter has very low internal resistance.
& voltmeter has very high resistance.

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