The total thermal resistance of a power transistor and heat sink is 20 – McqOptions

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1.	The total thermal resistance of a power transistor and heat sink is 20 C/W. The ambient temperature is 25 C and (T_J)MAX=200 C. If V_CE=4V, find the maximum collector current that the transistor can carry without destruction.
A.	3.67A
B.	7.56A
C.	2.19A
D.	4.16A
Answer» D. 4.16A

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