Question

Problem IIA In the circuit indicated in Figure IIA -(a), a load element (R ohm) is energized by a current source that varies with time as illustrated a. Deduce the wattage W-(WWi corresponding to power supplied to the load over the total period of T sec (with wi in the interval, t = 0 to T/2 and W2 in the interval, t = T/2 to T). Express the answer as a function of time in terms of the charge transferred to the load by the source in each interval of time (Ans hint: Wi(t) (21/T)x qi(t) xt x R, qi- (2Im/T)xt in the interval of time:t0 to T/2; W2(t), q2-] b. Calculate the total energy expended in the load over the time period T second. (Ans hint: Integrate W(t) over the time intervals) c. Assuming that V represents a current-controlled voltage-source (CCVS), what is its possible use in practice? d. Suppose the circuit Figure IlA -(a) is modified to that in Fig. II.A -(b). Determine the total charge transferred from the source over the period T seconds FIGURE IIA I(t) T/2 -I T/2 T

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Answer 1

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