A sinusoidal current is given by i$($t$)=24$ cos $(15$t $+60$o$)$ A$.$

Question $1$:

Find the rms value of the current and the phase in radians. $($You should have two answers for this question.$)$

Question $2$:

Find the frequency f in hertz and the period.$($You should have two answers for this question.$)$

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Question $3$:

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Find the reactance of the inductor and the impedance of the inductor. $($You should have two answers for this question.$)$

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Question $4$:

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Find the phasor current and the steady$-$state expression v$($t$)$ for the current through the inductor. $($You should have two answers for this question.$)$