During each period T, a current remains +6 A for a time T/3 and -3 A for the remaining 2T/3. Find its average value and RMS value.
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During each period T, a current remains +6 A for a time T/3 and −3 A for the remaining 2T/3. Find its average value and RMS value.

G1 Physics · Accepted Answer

Iₐᵥg = [6(T/3) − 3(2T/3)]/T = 0. Also, Iᵣₘₛ² = [36(T/3) + 9(2T/3)]/T = 18. Hence Iᵣₘₛ = 3√2 A.