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BITSAT 2021

Exam: BITSAT
Year: 2021
Subject: Physics
Chapter: Current Electricity

BITSAT 2021 · Physics · Current Electricity

A moving coil galvanometer has resistance of 10 and full scale...

A moving coil galvanometer has resistance of

10 \Omega

and full scale deflection of

0.01 \mathrm{ A}

. It can be converted into voltmeter of

10 \mathrm{ V}

full scale by connecting into resistance of

Options

A $9.90 \Omega$ in series
B $10 \Omega$ in series
C $990 \Omega$ in series
D $0.10 \Omega$

Correct answer

C. $990 \Omega$ in series

Step-by-step solution

\mathrm{R}=\frac{\mathrm{V}}{

\mathrm{I}

_{\mathrm{g}}}-\mathrm{G}=\frac{10}{0.01}-10=990 \Omega

in series.

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