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In meter bridge apparatus the bridge wire possess

$(a)\;\text{High resistivity and two temperature coefficient} \\(b)\;\text{High resistivity and high temperature coefficient} \\(c)\;\text{Low resistivity and high temperature coefficient}\\(d)\;\text{Low resistivity and two temperature coefficient}$
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The meter bridge wire should have high resistivity and low temperature coefficient .
So that it does not get heated up it when current passes through it.
Hence a is the correct answer.
answered Mar 18, 2014 by meena.p
edited Apr 2, 2014 by balaji.thirumalai

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