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Last Updated On 23-10-2022 - By Sara

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 :-

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
5876 Votes
3537

Answer Key : (b) -

0.95 R=

0.95×30=0.05 R0

R0=19×30=570



Next Question :

An unknown metal of mass 192 g heated to a temperature of 100°c was immersed into a brass calorimeter of mass 128 g containing 240 g of water a temperature of 8.4°c calculate the specific heat of the unknown metal if water temperature stabilizes at 21.5°c(specific heat of brass is 394 J k−1 K−1)

(a)

1232 J kg−1 K−1

(b)

458 J kg−1 K−1

(c)

654 J kg−1 K−1

(d)

916 J kg−1 K−1


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