Physics Current, Resistance and Electricity Resistance and Resistivity

0°C પર પ્લેટિનમ વાયરનો અવરોધ 2 Ω અને 80°C પર 6.8 Ω છે. વાયરનો તાપમાન ગુણાંક શું છે?

1

3 × 10-4 °C-1

2

3 × 10-3 °C-1

3

3 × 10-2 °C-1

4

3 × 10-1 °C-1

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