CUET · PHYSICS · PYQ PAPER 2023
Which of the following statements are correct?
A. Electrical resistivity of copper is low.
B. Temperature coefficient of resistance for semiconductors is positive.
C. On carbon resistors, colour of the second strip indicates the multiplier.
D. During charging of a cell, the terminal potential difference becomes greater than the emf of the cell.
E. The cells are connected in series to get more voltage, than cells connected in parallel.
Choose the correct answer from the options given below:
- A A, B and C only
- B B, D and E only
- C A, D and E only
- D B, C and E only
Answer & Solution
Correct Answer
(C) A, D and E only
Step-by-step Solution
Detailed explanation
A (Correct): Copper is an excellent conductor, meaning its electrical resistivity is very low. D (Correct): During charging, the external voltage must overcome the cell's internal resistance, making the terminal potential difference ( \(V=E+I r\) ) greater than the emf ( E). E…
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