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NEET 2023

NEET 2023 Physics question on Current Electricity

The resistance of platinum wire at 0°C0°C is 2 Ω2\,\Omega and 6.8 Ω6.8\,\Omega at 80°C80°C. The temperature coefficient of resistance of the wire is
  1. A.
    3×10−4 °C−13 \times 10^{-4}\,°C^{-1}
  2. B.
    3×10−3 °C−13 \times 10^{-3}\,°C^{-1}
  3. C.
    3×10−2 °C−13 \times 10^{-2}\,°C^{-1}
  4. D.
    3×10−1 °C−13 \times 10^{-1}\,°C^{-1}
Show answer

Correct option: C

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