t = 0 4V3 µF ®1 Black box +. 6V 6 µF 2

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 2RQ: Semiconductors are ____________. conductors insulators half conductors none of the above
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The two series-connected capacitors shown are connected to the terminals of a black box at t=0. The resulting current i(t) for t>0 is known to be 20e−t μA.

a. Replace the original capacitors with an equivalent capacitor and find vo(t) for t≥0.

b. Find v1(t) for t≥0.

c. Find v2(t) for t≥0.

d. How much energy is delivered to the black box in the time interval 0≤t<∞?

e. How much energy was initially stored in the series capacitors?

f. How much energy is trapped in the ideal capacitors?

g. Show that the solutions for v1 and v2 agree with the answer obtained in (f).

t = 0
4V3 µF ®1
Black
box
+.
6V 6 µF 2
Transcribed Image Text:t = 0 4V3 µF ®1 Black box +. 6V 6 µF 2
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