UPSC ESE 2023 Electrical Engineering Paper

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Question : 21 of 150

Marks: +1, -0

A regular Wheatstone bridge is used to measure high resistance. The bridge has ratio arms of

10{,}000\ \Omega

10\ \Omega

. The adjustable arm has a maximum value of

10{,}000\ \Omega

. A battery of 10 V emf and negligible resistance is connected from the junction of ratio arms to the opposite corner. What is the maximum resistance that can be measured by this arrangement?

$10\ \mathrm{k}\Omega$
$10\ \mathrm{M}\Omega$
$100\ \mathrm{k}\Omega$
$100\ \mathrm{M}\Omega$

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