Physics · Current Electricity
How does an increase in temperature affect the electrical resistance of metals and insulating materials?
- 1The resistance of metals decreases and that of insulating materials increases
- 2The resistance of both metals and insulating materials decreases
- 3The resistance of both metals and insulating materials increases
- 4The resistance of metals increases and that of insulating materials decreases✓
Correct answer
The resistance of metals increases and that of insulating materials decreases
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