STANDARDPhysics-Current Electricity
STANDARD Physics Meter Bridge MCQ Question
Type: MCQ-numerical-Medium-Class 12
What is the value of unknown resistance R, if galvanometer shows null deflection in the given meter bridge set up?
A
97.50 Ω
B
105 Ω
C
150 Ω
D
110 Ω
Correct Answer
Option A
Detailed Explanation
For null deflection, R₁/R₂ = l/(100-l). Given R₁ = 65 Ω and l = 40 cm, solve for R to get 97.5 Ω.
Found an issue with this question?
Related Questions
More from Current Electricity
More from
Consider a diagram showing a rectangular slab of length \( l \) and area of cross-section \( A \). If the resistance \( R \) of the slab is given by t...
(general)Physics
Assertion (A): The equivalent emf of two cells in parallel is the sum of their emfs divided by the sum of their internal resistances. | Reason (R): Th...
Ohm's LawPhysics
Which of the following statements best defines when a conducting material obeys Ohm's law?
Ohm's LawPhysics