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The actual value resistance R, shown in the figure is 30. This is measured in an experiment as showing using the standard formula R=, where V and I are the readings of the voltmeter and ammeter, respectively. If the measured value of R is 5% less, then the internal resistance of the voltmeter is:

(a)

350

(b)

570

(c)

35

(d)

600



Question ID - 50250 | SaraNextGen Top Answer

The actual value resistance R, shown in the figure is 30. This is measured in an experiment as showing using the standard formula R=, where V and I are the readings of the voltmeter and ammeter, respectively. If the measured value of R is 5% less, then the internal resistance of the voltmeter is:

(a)

350

(b)

570

(c)

35

(d)

600

1 Answer
127 votes
Answer Key / Explanation : (b) -

0.95 R=

0.95×30=0.05 R0

R0=19×30=570

127 votes


127