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QJEEM19Ph847c: JEE Main 2019 Physics - Class 12 JEEM19Ph847c Solution: The actual value of resistance R, shown in the figure is 30 Ω . …

The actual value of resistance R, shown in the figure is 30Ω. This is measuered in an experiment as shown using the standard formula R = VI, 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 -

JEE Main 2019 (Online) 10th January Evening Slot Physics - Current Electricity Question 262 English

Multiple Choice Options

  • A 570 Ω
  • B 600 Ω
  • C 350 Ω
  • D 35 Ω

Step-by-Step Verified Solution

0.95 R = RRvR+Rv

0.95 × 30 = 0.05 Rv

Rv = 19 × 30 = 570 Ω

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