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202-HW5 - University of Southern California Ming Hsieh...

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Unformatted text preview: University of Southern California Ming Hsieh Department of Electrical Engineering EE 202L - Linear Circuits Homework Set #5 Due in class, Thursday, 17 November Five problems (attached) from old exams. [email protected] A. Determine H (w) = 712/111 for the circuit drawn below. 4.. B. Determine the steady-state 02(t) if v1(t) = 4005 St. W CD The circuit drawn below has vin(t) = 10 cos(2t). Determine v0u¢(t). [email protected] The circuit below contains an ideal op-amp. L a A. Derive an expression for the voltage gain (Av = ’Uo/Ui) in terms of the algebraic impedance values that apply to the 5 domain. (Hint: Consider the op-amp circuit gain without L and C.) Problem 1 (continued) Now let R2 = 20 kg and C = 0.5 pF. B. Determine R1 such that the voltage gain is -2 at dc. C. Determine L such that the voltage gain is zero at 10 kHz. D. Find the phase angle of the output in relation to the input at 5 kHz. (Use the R1 and L values determined previously.) [email protected] A. You have a relay coil, which is modeled as a RESISTOR and INDUCTOR in series, but you are unsure of the specific values of R and L within the coil. When you place a 8-V, l-kHz sinusoidal source across the coil, the magnitude of the measured current is 0.471 A. When tuning the frequency to 250 Hz, you find that the magnitude of the current increases to 0.516 A. What are the values of L and R for this coil? we: The circuit below operates in the sinusoidal steady state with III-(t) = 10 cos(200t). A. Determine R and L so that maximum power is delivered to the load. B. Determine the maximum power delivered. ...
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