ECE 231 HW-9

ECE 231 HW-9 - Problem 4-Vs(t = Ae j2 π 100t A= 1.5 Volts...

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ECE-231 Circuits and Systems I Spring 2011 HW Set #9 Professor Stewart Personick ECEC-321 [email protected]
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Instructions Send your solution set, via E-mail, to: [email protected] The “subject” of your E-mail must be : ECE 231 HW#9 (your last name) Your solution set must be in the form of an attachment. I.e. a Microsoft Office file (.doc, .docx, .xls, .xlsx, .ppt, .pptx) or a legible scan of a handwritten file. Your solution set must be sent to me by the deadline: Sunday, March 27, 8 p.m.
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Problem 1 7e j π /3 = A + jB Calculate the values of the ordinary numbers: A and B
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Problem 2 120 + j50 = C e jD Calculate the values of the ordinary numbers: C and D (where C is a positive number)
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Problem 3 (16 - j19) / (4 + j8) = C e jD Calculate the values of the ordinary numbers: C and D (where C is a positive number)
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Unformatted text preview: Problem 4 +-Vs(t) = Ae j2 π 100t A= 1.5 Volts a b i(t) i(t) = Λ x e j2 π 100t Amperes ; where Λ = C e jD Solve for the ordinary numbers: C and D L = .005H R = 5 Ω c Problem 5 +-Vs(t) = A cos(2 π 100t) A= 1.5 Volts a b i(t) = {E cos(2 π 100t) + F sin(2 π 100t)} Amperes Solve for the ordinary numbers: E and F Hint: cos (2 π 100t+ ϑ ) = cos (2 π 100t) cos ( ϑ ) - sin(2 π 100t) sin( ϑ ) L = .005H R = 5 Ω c i(t) Problem 6 +-Vs(t) = 2V + A cos(2 π ft) A= 1.5 Volts a b Using your myDAQ, your 1 μ F capacitor and your 1000 Ohm resistor, measure and plot Vbc v. f for 0Hz<f< 1kHz. What is the impedance of a 1 μ F capacitor at 1kHz? From your measurements, estimate the actual value of C. R = 1000 Ω c i(t) C = 1 μ F +...
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ECE 231 HW-9 - Problem 4-Vs(t = Ae j2 π 100t A= 1.5 Volts...

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