Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Magnetism/
Question 20208
JEE Physics · Medium

Magnetism: Series Resistance for Voltmeter MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Series Resistance for VoltmeterMediumQuestion 20208

Question

The same galvanometer (G = 50 Ω, Ig = 1 mA) needs to be used as a 10 V voltmeter. Required series resistance is:
  1. A
    9950 Ω
    Correct
  2. B
    10000 Ω
  3. C
    9900 Ω
  4. D
    10050 Ω

Correct answer

9950 Ω

Explanation

R = V/Ig − G = 10/0.001 − 50 = 10000 − 50 = 9950 Ω.

Review Magnetism notesStart timed chapter practice