a. A current of 7.4 A flows through a conductor. Calculate how much charge passes through any cross-section of the conductor in 20 s. b. The voltage v across a device and the current i through it are V(t) = 10cos2t V, i(t) = 20(1-e-0.5t) mA Calculate: (a) the total charge in the device at t=1s. (b) the power consumed by the device at t=1s.
a. A current of 7.4 A flows through a conductor. Calculate how much charge passes through any cross-section of the conductor in 20 s. b. The voltage v across a device and the current i through it are V(t) = 10cos2t V, i(t) = 20(1-e-0.5t) mA Calculate: (a) the total charge in the device at t=1s. (b) the power consumed by the device at t=1s.
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 14RQ
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