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EE301 12 Week Exam: Review

EE301 12 Week Exam: Review. Jeopardy!. Phasor / Complex # ’s $100. Z (Not Zombies ) $100. Find I 1 and I 2. Source Conversion and Nodal $100. Convert the voltage source to a current source:. Max Power (Think TH) $100.

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EE301 12 Week Exam: Review

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  1. EE301 12 Week Exam:Review

  2. Jeopardy!

  3. Phasor / Complex #’s $100

  4. Z (Not Zombies) $100 Find I1and I2.

  5. Source Conversion and Nodal $100 Convert the voltage source to a current source:

  6. Max Power (Think TH) $100 Convert the source below into a Thévenin equivalent and determine the voltage VL across load ZL. 3

  7. (Ultimate) POWER and Fp$100 Determine the apparent (S) power, total real (P) and reactive (Q) power using the following equations: 10A

  8. Resonance and Low/High Pass $100 • Find I, VR, VC, VLat resonance. • Determine Q for the circuit. • If the fr is 5 kHz, what is the BW? • With fr= 5kHz what are the values of L and C? • What is the power dissipated in the circuit at the half-power frequency?

  9. Phasor / Complex #’s $200

  10. Z (Not Zombies) $200 Find I2 and VL.

  11. Source Conversion and Nodal $200 Using source transformations, determine the voltage drop VR across the 3 ohm resistor. + -

  12. Max Power (Think TH) $200 Convert the source below into a Thévenin equivalent.

  13. (Ultimate) POWER and Fp$200 • Determine the unknown real (P2) and reactive powers (Q3) in the circuit below. • Determine total apparent power. • Draw the power triangle. • Is the unknown element in Load #3 an inductor or capacitor?

  14. Resonance and Low/High Pass $200 Determine fr, Q, BW and the current (I) at resonance. Plot the current vs. frequency and label fr, f1, f2and BW. R = 1Ω

  15. Phasor / Complex #’s $300

  16. Z (Not Zombies) $300 Find I2using the Current Divider Rule. Find Va and Vac.

  17. Source Conversion and Nodal $300 Using source transformations, determine the voltage drop Vab across the 10 ohm resistor and IR through resistor.

  18. Max Power (Think TH) $300 Determine ZLD that will allow maximum power to be delivered to the load in the circuit below. Then find the power dissipated by the load.

  19. Example Problem 3 • Determine the value of the capacitance (in F) required to bring the power factor up to unity (freq of 60 Hz). • Determine load current before and after correction. a) Sign Change b) Because the QT = 332 VAR, we can insert a capacitor with QC = -332 VAR PT QT

  20. (Ultimate) POWER and Fp$300 Determine the value of the capacitance (in F) required to bring the power factor up to unity (freq of 60 Hz). Determine load current before and after correction

  21. Resonance and Low/High Pass$300 Design an RC Low Pass Filter for the HF band (3-30MHz) using a resistor value of 5Ω. Draw the circuit and label the frequency response curve.

  22. Phasor / Complex #’s $400 The 120VDC source shown delivers 3.6 W to the load. Determine the peak values of the sinusoidal voltage and current (Em and Im) such that the AC source delivers the same power to the load.

  23. Z (Not Zombies) $400 Compute Vab.

  24. Source Conversion and Nodal $400 DAILY DOUBLE

  25. Max Power (Think TH) $400 Determine the load ZLD that will allow maximum power to be delivered to the load the circuit below. Frequency is 191.15 Hz. Find the maximum power. What will happen to power if the frequency is changed to 95.575?

  26. (Ultimate) POWER and Fp$400 • Determine S, PT, QT, and FP. • Determine the value of the capacitance (in F) required to bring the power factor up to unity (freq of 60 Hz). • Determine generator current before and after correction.

  27. Resonance and Low/High Pass$400 Determine fc Find Av at f = 0.1fc Find Av at f = 100fc Determine frequency at which Vo = ½ Vi fc = 1/(2*pi*RC) = fc= 1/(2*pi*20*10^-12*100*10^3) fc = 79.6kHz Av = 1/(sqrt((Xc/R)^2 + 1)); Xc @ .1fc = 1/(2*pi*7960*20*10^12) = 1MΩ Av = 1/(sqrt((1MΩ/100kΩ)^2 + 1)) =0.0995 Xc @ 100fc= 1/(2*pi*7660000*20*10^12) = 1.04kΩ Av = 1/(sqrt((1kΩ/100kΩ)^2 + 1)) =0.99995 .5 = 1/(sqrt((Xc/100kΩ)^2 + 1)) Xc = 100kΩ*(sqrt((1/Av)^2-1) = 173.2kΩ f = 1/(2*pi*Xc*C) = 1/(2*pi*173.2kΩ*20pF) f = 45.9kHz 20pF 100kΩ

  28. Source Conversion and Nodal $400 • Determine the voltage Vb in the circuit below:

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