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04-01-2024
Physics

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1. a) Which of the following expressions gives the output voltage as a function of time for an AC source that has an amplitude of 12 V and a frequency of 200 Hz ? Assume an initial phase of 0.
v(t)=12cos(400πt), v(t)=12sin(200t),mv(t)=12sin(200t), v(t)=12sin(400πt) What is the amplitude of the voltage at time t=1.331 s ? v(t=1.331s)= Hint: Should your calculator be in radian mode or degree mode?

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