For which of the following the resistance decreases on increasing the temperature?
Correct answer: C. Germanium
- A. Copper
- B. Tungsten
- C. Germanium
- D. Aluminium
Explanation
Germanium is a semi conductor and it has negative temperature coefficient of resistance. Therefore, its resistance will decrease on increasing the temperature. Hence, this option is correct.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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