In a voltmeter there are 20 divisions between the 0 mark and \( 4 \mathrm{~V} \) mark The least ...

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In a voltmeter there are 20 divisions between the 0 mark and \( 4 \mathrm{~V} \) mark The least count of the voltmeter is
a. \( 0.020 \mathrm{~V} \)
b. \( 0.2 \mathrm{~V} \)
c. \( 0.050 \mathrm{~V} \)
d. \( 0.250 \mathrm{~V} \)
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