Physics · Current Electricity

NEET (UG) 2023 — Question 10

If the galvanometer GG does not show any deflection in the circuit shown, the value of RR is given by :

Question figure
  1. Option A:

    50Ω50 \Omega

  2. Option B:

    100Ω100 \Omega

    Correct
  3. Option C:

    400Ω400 \Omega

  4. Option D:

    200Ω200 \Omega

Answer: B

Step-by-step solution

Since galvanometer does not show any deflection ⇒ig=0\Rightarrow i_g=0

10−2400=2R⇒R=2×4008=100Ω\frac{10-2}{400}=\frac{2}{R} \Rightarrow R=\frac{2 \times 400}{8}=100 \Omega
Solution figure

Answer key and solution verified before publishing.

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Exam
NEET (UG) 2023
Subject
Physics
Chapter
Current Electricity
Topic
Circuit Analysis, Kirchhoff's Law and Nodal Analysis
If the galvanometer G does not show any deflection in the circuit… | NEET (UG) 2023 PYQ with Solution · DhiX AI