Why, in case of semi-conductors, like Germanium, is resistance directly proportionalto temperature whereas in case of conductors, like Silver. temperature and resistance, are inversely proportional (to each other)? And sorry for the earlier post. I have made a mistake in the question.

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Solution

For conductors as temp increases, resistance increases because collision between the electron increases which produce more hindrance hence more resistance.

For semiconductors, as temp increases, more electrons and hole pairs generated due to which conductance increases hence resistance decreases.

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Why, in case of semi-conductors, like Germanium, is resistance directly proportionalto temperature whereas in case of conductors, like Silver. temperature and resistance, are inversely proportional (to each other)? And sorry for the earlier post. I have made a mistake in the question.

For conductors as temp increases, resistance increases because collision between the electron increases which produce more hindrance hence more resistance. For semiconductors, as temp increases, more electrons and hole pairs generated due to which conductance increases hence resistance decreases.

For conductors as temp increases, resistance increases because collision between the electron increases which produce more hindrance hence more resistance.

For semiconductors, as temp increases, more electrons and hole pairs generated due to which conductance increases hence resistance decreases.