The signal $x(t) = 2cos(4t + \frac{\pi}{6})$ is aperiodic periodic transposed None of the above For maximum efficiency of a transformer, the ratio of iron loss to copper loss is: 1:2 2:1 1:1 3:2
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A periodic signal repeats itself after a certain time interval. In this case, the signal is a cosine function with a frequency of 4, which means it completes 4 cycles in 1 second. Therefore, the period of the signal is 1/4 seconds. Show more…
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