Lesson-42: Study of DC-AC Measuring Instruments - nptel
Lesson-42: Study of DC-AC Measuring Instruments - nptel
Lesson-42: Study of DC-AC Measuring Instruments - nptel
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T.<strong>42</strong>.5 Two resistors are connected in series across a 200V dc supply. The resistor<br />
values are R1 = 300kΩ and R2<br />
= 200kΩ. The voltmeter FSD is 250V and its sensitivity<br />
is 10 kΩ / V . Determine the voltage across the resistance R2<br />
: (i) without voltmeter in the<br />
circuit. (ii) with voltmeter connected.<br />
Meter resis tan ce + resis tan ce <strong>of</strong> multiplier<br />
(Voltmeter sensitivity =<br />
)<br />
Range <strong>of</strong> voltmeter<br />
(Ans. 80 V,76.33V<br />
) [8]<br />
Version 2 EE IIT, Kharagpur
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