CUET · PHYSICS · PYQ PAPER 2025
Which of the following statements related to Wheatstone Bridge are correct?
(A).The bridge is most sensitive when all the four resistances are of the same order
(B). The internal resistance of the cell and the resistance of the galvanometer affect the null point
(C). It does not involve measurement of current and potential difference
(D).Resistances of ammeters and voltmeters do not affect the measurements
Choose the correct answer from the options given below:
- A (A), (B) and (D) only
- B (A) and (C) only
- C (A), (B), (C) and (D)
- D (A), (C) and (D) only
Answer & Solution
Correct Answer
(B) (A) and (C) only
Step-by-step Solution
Detailed explanation
Statements (A) and (C) are correct. The bridge is most sensitive when all four resistances are of the same order. It does not involve direct measurement of current and potential difference at the null point; it relies on a null deflection.
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