Knowing how to analyze circuits with sinusoidal sources is an important skill, a

Question

Knowing how to analyze circuits with sinusoidal sources is an important skill, as most power is generated, transmitted, and delivered in a form that can be described mathematically using sinusoids. Here you will consider the circuit shown below, whose voltage source produces a time-varying waveform given as v(t) = 50cos(2000t - 45 degrees) mV.

Part A -Find the amplitude of the voltage source

The amplitude, or magnitude, of a sinusoidal source is the maximum value of the source. What is the amplitude of the voltage source described asv(t) = 50cos(2000t - 45 degrees) mV.

Part B -Find the frequency, in radians/second, of the voltage source

What is the frequency, in radians/second, of the voltage source described asv(t) = 50cos(2000t - 45 degrees) mV?

Part C -Find the frequency, in hertz, of the voltage source

What is the frequency, in hertz, of the voltage source described asv(t) = 50cos(2000t - 45 degrees) mV?

Part D -Find the period of the voltage source

What is the period of the voltage source described asv(t) = 50cos(2000t - 45 degrees) mV?

Part E -Find the phase angle of the voltage source, in degrees

Part F -Find the value of the voltage source att= 392.7 ?s

Part G -Construct a cosine function to represent a plot of a sinusoid

Explanation / Answer

(f) 50mV

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