Thermal question. What time constant τ = CthRth is needed so that a 1 kW electrical system that is 90% efficient reaches its steady-state temperature within about 5 time constants. The ambient air temperature is 50 °C. A.Doesn't matter, the system will always reach its steady-state in about 5 time constants. B.Can't be calculated because there are missing conditions. C.No, that's impossible. D.5 s

One time Constant is that time after which the output reaches 63% of its steady state value. Time…

Answered: What time constant τ = CthRth is needed…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

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Thermal question. What time constant τ = C_thR_th is needed so that a 1 kW electrical system that is 90% efficient reaches its steady-state temperature within about 5 time constants. The ambient air temperature is 50 °C.

	A.	Doesn't matter, the system will always reach its steady-state in about 5 time constants.
	B.	Can't be calculated because there are missing conditions.
	C.	No, that's impossible.
	D.	5 s

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