Electronic Devices and Circuits - ECE Questions and Answers

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Assertion (A): In design of circuit using BJT, a derating factor is used.

Reason (R): As the ambient temperature increases, heat dissipation becomes slower.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not a correct explanation of A

A is true but R is false

A is false but R is true

Answer : Option A

Explanation :

Increase of ambient temperature lowers the heat dissipation capacity.

Therefore derated operation of BJT is necessary lest BJT should be destroyed.

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