NEET2022Physics-Current Electricity
NEET 2022 Physics Wheatstone Bridge MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A wheatstone bridge is used to determine the value of unknown resistance X by adjusting the variable resistance Y as shown in the figure. For the most precise measurement of X, the resistances P and Q:
A
should be very large and unequal
B
do not play any significant role
C
should be approximately equal to 2X
D
should be approximately equal and are small
Correct Answer
Option D
Detailed Explanation
For maximum sensitivity, the Wheatstone bridge is balanced when P and Q are equal and small, minimizing errors due to resistance of connecting wires.
Found an issue with this question?