Mathematics · Alternating Current Circuits
The voltage across a circuit and the current through it are given by the following expressions: v(t) = 5 - 10 cos(ωt + 60°) V i(t) = 5 + X cos(ωt) A where ω = 100π rad/s. If the average power delivered to the circuit is zero, then the value of X (in amperes) is:
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