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What is the effect of temperature on a transistor.

Answer»

SOLUTION :With increase in TEMPERATURE the leakage current, which is the current due to the minority CARRIERS will increase. Hence the collector current will also be INCREASED. We can show-that `I_c=betaI_B+(chi+1)I_"leak".I_leak` is me lemcage current due to the minority earners wmeh increases RAPIDLY with increase in temperature. If temperature is constant, then `I_c` will depend on `I_B`. But if temperature is increased men `I_c` is controlled `I_leak` and not by `I_B`.


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