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Nor Farahidah Za’bah Room number : E2-2-13.12 Phone number : 03-6196 4562 Email address :

Stay punctual, silent your phone, follow dress code, and attend compulsory sessions. Questions based on Bloom's Taxonomy levels for MOSFET, BJT, circuit analysis, and design tasks. Evaluate your understanding with circuit calculations and component values. Practice Kirchhoff's laws and calculate branch currents and resistances. Determine Thevenin equivalent circuit values.

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Nor Farahidah Za’bah Room number : E2-2-13.12 Phone number : 03-6196 4562 Email address :

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  1. Nor FarahidahZa’bah • Room number : E2-2-13.12 • Phone number : 03-6196 4562 • Email address : • adah510@iium.edu.my • nfzabah@hotmail.com • Website: http://staff.iium.edu.my/adah510

  2. My rules • Be punctual! • Silent your handphone while in class • Wear proper attire as to the University’s dress code • Attendance is COMPULSORY

  3. Course Assessment

  4. Bloom’s Taxonomy

  5. Bloom’s Taxonomy

  6. Example of Questions • State two (2) differences between MOSFET and BJT – LEVEL 1 • Explainhow depletion region is created in a pn junction? – LEVEL 2 • Calculatethe bandgap energy of the germanium – LEVEL 3

  7. Example of Questions • Sketchthe output voltage, VO if the input signal, Vi is a 12 V peak-to-peak square wave – LEVEL 3 • Analyze the circuit below to calculate the base, collector and emitter currents – LEVEL 4

  8. Compare the two characteristics for a conventional pn-junction diode and a Zener diode – LEVEL 4/5 • Evaluate the circuit below to determine whether the BJT is in cut-off, active or saturation mode – LEVEL 5

  9. Design an n-channel MOSFET circuit is as shown in the figure - LEVEL 6 NOTE: A DESIGN question generally means that you are required to calculate the values of the resistors.

  10. Design a full-wave center-tapping rectifier circuit for a desired peak output current by determining the transformer turns ratio – LEVEL 6

  11. EVALUATION

  12. Fill up the following blanks: • The unit of EMF of a battery is---------------and 1 mV = -------------Volt • The unit of power is----------------and the unit of energy is--------------- • The unit of capacitance is--------------------  0.001 Volt Watt Joule Farad

  13. Node Voltages VA What is VA – VB ? What about VB – VA ? What is the value of VB if VA = 10 V ? 4 V - 4 V 6 V VB

  14. Branch Current Equation A Branch Current Equation is based on Ohm’s Law (VA – VB) / 2 = I 2 I B C = 4/2 = 2 A 2 I (VD – VC) / 2 = I D

  15. Kirchhoff Current Law Kirchhoff Voltage Law

  16. What will be the polarity of the voltage across the resistor if the current direction is as follows: I - + VR

  17. I 5 I + 10 I + 7.5 I – 45 = 0 22.5 I – 45 = 0 I = 2 mA

  18. Which branch has the bigger current? • If the voltage across the 10 is 5V, what is the voltage across the 4? • What is the total resistance? The 4  branch 4 10 5 V 2.86 

  19. Thevenin Equivalent • VTH and RTH • VTH = open circuit voltage at the output terminal • RTH = equivalent resistance when the voltage/current source is turned off VTH = voltage across 4 k = 12 V RTH = 12 k in parallel with 4 k = 3 k 3 k 12 V

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