Physics · Current Electricity
For semiconductor and insulating materials (solid non-metals), how does the electrical resistance typically vary with temperature?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Resistance fluctuates unpredictably regardless of temperature changes
- 2α > 0, so resistance increases with a rise in temperature
- 3α < 0, so resistance decreases with a rise in temperature✓
- 4α = 0, so resistance is independent of temperature
Correct answer
α < 0, so resistance decreases with a rise in temperature
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