Final answer:
The amplitude of the current through the voltage source, I0, can be determined by identifying the coefficient of the cosine function in the given equation I(t) = I0cos(ωt).
Step-by-step explanation:
The amplitude of the current through the voltage source, I0, can be determined from the equation I(t) = I0cos(ωt). The amplitude, I0, represents the maximum value of the current and is equal to the coefficient of the cosine function.
For example, if the equation is I(t) = 5cos(2πt), then the amplitude, I0, is 5.
Therefore, to find the amplitude of the current through the voltage source, you can refer to the given equation I(t) = I0cos(ωt) and identify the coefficient of the cosine function as the value of I0.