A power transistor dissipates 5 W. If ambient temperature is 30¬∞ a – McqOptions

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1.	A power transistor dissipates 5 W. If ambient temperature is 30¬∞ and case to air thermal resistance is 10¬∞ C/W, the case temperature is
A.	80¬∞C
B.	20¬∞C
C.	32¬∞C
D.	305¬∞C
Answer» B. 20¬∞C

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