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Which of the following is true for the saturation region of BJT transistor?

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Which of the following is true for the saturation region of BJT transistor?

(a) The collector current is inversely proportional to the base current

(b) The collector current is proportional to the square root of the collector current

(c) The natural logarithm of the collector current is directly proportional to the base current

(d) None of the mentioned

The question was asked by my school principal while I was bunking the class.

Asked question is from BJT Circuits at DC in chapter Bipolar Junction Triodes (BJTs) of Electronic Devices & Circuits

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Correct option is (b) The collector current is proportional to the square root of the collector current

The explanation is: The collector current is directly proportional to the base current in the saturation region of the BJT.

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