Question
Asked Feb 22, 2020
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The voltage across a 100-μF capacitor takes the
following values. Calculate the expression for the
current through the capacitor in each case.
a. vC(t) = 40 cos(20t − π/2) V
b. vC(t) = 20 sin 100t V
c. vC(t) = −60 sin(80t + π/6) V
d. vC(t) = 30 cos(100t + π/4) V

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Expert Answer

Step 1

Given capacitor voltage and value of capacitor is –

Electrical Engineering homework question answer, step 1, image 1

Value of current is –

Electrical Engineering homework question answer, step 1, image 2

Step 2

Given capacitor voltage and value of capacitor is –

Electrical Engineering homework question answer, step 2, image 1

Value of current is –

Electrical Engineering homework question answer, step 2, image 2

Step 3

Given capacitor voltage and value of capacitor is –

Electrical Engineering homework question answer, step 3, image 1

Value of current is –

Electrical Engineering homework question answer, step 3, image 2

...

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