The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by ___________

100 µA
25 µA
20 µA
50 µA

The correct answer is B.

The stability factor of a transistor is a measure of its resistance to changes in collector current due to changes in base current. A higher stability factor indicates that the transistor is more resistant to these changes.

In this case, the stability factor is 50. This means that if the base current changes by 1 µA, the collector current will change by 50 µA.

Therefore, if due to temperature change, ICBO changes by 1 µA, then IC will change by 50 µA.

Option A is incorrect because it is twice the value of the stability factor.

Option C is incorrect because it is half the value of the stability factor.

Option D is incorrect because it is the value of the stability factor.