Networks Analysis and Synthesis

Q1:
In the circuit of figure, the power consumed in resistance R is measured when one source is acting at one time. These values are 18 W, 50 W and 98 W. When all source act together the maximum and minimum power can be

A 98 W and 18 W

B 166 W and 18 W

C 450 W and 2 W

D 166 W and 2 W

ANS:B - 166 W and 18 W

Let R = 1 Ω. Then I1 = 32 A, I2 = 52 A and I3 = 72 A. (I1 + I2 + I3)2 R = (152)2 R = 450 Ω.



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