Change in ICBO
Change in VCC
Change in the values of circuit resistance
None of the above
Answer is Wrong!
Answer is Right!
The correct answer is: A. Change in ICBO
When the temperature changes, the operating point is shifted due to a change in the collector-emitter leakage current (ICBO). This is because the ICBO increases with temperature. The increase in ICBO causes the collector current (IC) to increase, which in turn causes the operating point to shift.
The other options are incorrect because:
- Option B: The collector supply voltage (VCC) does not change with temperature.
- Option C: The values of circuit resistance do not change with temperature.
- Option D: None of the above is the correct answer.
I hope this helps! Let me know if you have any other questions.