SATHEE: Current Electricity Ques 1

Current Electricity Ques 1

1. Which of the following graph represents the variation of resistivity $(\rho)$ with temperature $(\mathrm{T})$ for copper?

[2020]

(a)

(b)

(c)

(d)

Show Answer

Answer:

Correct Answer: 1.(b)

Solution: (b) For metals like copper, at temperature much lower than $0^{\circ} \mathrm{C}$, graph deviates considerably from a straight line.

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Current Electricity

Current Electricity Ques 1

1. Which of the following graph represents the variation of resistivity $(\rho)$ with temperature $(\mathrm{T})$ for copper?

Answer:

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