Thermal stability is dependent on thermal runaway which is_________ – McqOptions

MCQOPTIONS

1.	Thermal stability is dependent on thermal runaway which is_________
A.	an uncontrolled positive feedback
B.	a controlled positive feedback
C.	an uncontrolled negative feedback
D.	a controlled negative feedback
Answer» B. a controlled positive feedback

Discussion

No Comment Found

Related MCQs

Which of the following biasing techniques are affected by thermal runaway?
Thermal stability is dependent on thermal runaway which is_________
Thermal stability can be obtained by_________
The total thermal resistance of a power transistor and heat sink is 20 C/W. The ambient temperature is 25 C and (T<sub>J</sub>)MAX=200 C. If V<sub>CE</sub>=4V, find the maximum collector current that the transistor can carry without destruction. What will be the allowed value of collector current if ambient temperature rises to 75 C?
The total thermal resistance of a power transistor and heat sink is 20 C/W. The ambient temperature is 25 C and (T<sub>J</sub>)MAX=200 C. If V<sub>CE</sub>=4V, find the maximum collector current that the transistor can carry without destruction.
A silicon power transistor is operated with a heat sink H<sub>S</sub>-A=1.5 C/W. The transistor rated at 150W (25 C) has H<sub>J</sub>-C=0.5 C/W and the mounting insulation has HC-S=0.6 C/W. What maximum power can be dissipated if the ambient temperature is 40 C and (T<sub>J</sub>)MAX=200 C?
For a given transistor, the thermal resistance is 8 C/W and for the ambient temperature T<sub>A</sub> is 27 C. If the transistor dissipates 3W of power, calculate the junction temperature (T<sub>J</sub>).