Verified Solution • 2025–26 Session moderate

QJEEM19Ph22b8: JEE Main 2019 Physics - Class 12 JEEM19Ph22b8 Solution: A moving coil galvanometer has resistance 50 Ω and it indicates …

A moving coil galvanometer has resistance 50Ω and it indicates full deflection at 4mA current. A voltmeter is made using this galvanometer and a 5 kΩ resistance. The maximum voltage, that can be measured using this voltmeter, will be close to :

Multiple Choice Options

  • A 15 V
  • B 10 V
  • C 40 V
  • D 20 V

Step-by-Step Verified Solution

G = 50 Ω

S = 5000 Ω

Ig = 4 × 10–3

V = ig (G + S)

V = 4 × 10–3 (50 + 5000)

= 4 × 10–3 (5050) = 20.2 volt

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