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Physics-

General

Easy

Question

The resistance of 1 A ammeter is $0.018 capital omega$ . To convert it into 10 A ammeter, the shunt resistance required will be

$0.18 Ω$
$0.0018 Ω$
$0.002 Ω$
$0.12 Ω$

The correct answer is: $0.002 capital omega$

$S equals fraction numerator i subscript g end subscript G over denominator left parenthesis i minus i subscript g end subscript right parenthesis end fraction equals fraction numerator 1 cross times 0.018 over denominator 10 minus 1 end fraction equals fraction numerator 0.018 over denominator 9 end fraction equals 0.002 capital omega$

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