FE Exam Circuits-a gentle overview Prof. Prakash Ranganathan

1
FE Exam
Circuits -a gentle overview
Prof. Prakash Ranganathan
2
FE Exam Content
Morning Session 4 Hours, 120 Problems, 120
Points Mathematics, Chemistry, Physics,
Computers, Dynamics, Electrical Circuits,
Engineering Economics, Ethics, Fluid Mechanics,
Material Science/Structure of Matter, Mechanics
of Materials, Statics, Thermodynamics
Afternoon Session 4 Hours, 60 Problems, 120 Points
Chemical
Mechanical
Electrical
Industrial
Civil
General
3
Morning Sessions Subjects
4
Afternoon Session Subjects

• Discipline Specific
• Chemical
• Civil
• Industrial
• Electrical
• Mechanical
• General

5
Strategies for Takingthe FE Exam

• Think before you start a problem
• Is there an easy way to work this?
• If you dont know the correct answer, eliminate
  some incorrect answers
• Are of these answers obviously wrong?
• Now, can you work backwards?

6
Handling Difficult Problems

• If you have no clue at all
• Make your best guess
• Circle the problem number (or identify it some
  other way) to indicate you have no clue
• Come back to these problems only if have more
  time
• Never leave a question unanswered

7
Day Before the Exam

• Get materials ready to go
• Get a good nights sleep
• Do not cram the night before or the morning of
  the exam
• Relax, be calm

8
On Exam Day

• Arrive about 15 minutes early
• Do bring calculator and spare battery
• Do bring number 2 pencils (mechanical HB works)
• Do dress comfortably (layer)
• Do not bring scratch paper
• Do not bring reference book

9
What If You Do Not Pass?

• Take it again
• Exam is offered twice a year
• Review and study for the next time
• No adverse information is placed on your record

10
General Circuitry Concepts

• KCL
• KVL
• Ohms Law, Interconnections, Series, Parallel
• Current Divider, Voltage Divider,
• Power Calculations
• Finding Equivalent Impedance
• Req, Impedance
• Norton, Thevenin
• Operational Amplifier

11
Introduce Circuit Variables
12
KCL (Contd.,)
13
KCL
14
KVL
15
KVL (Contd.,)
16
Ohms Law
17
Power Equations
18
(a) See page 31(Nilson/Riedel)
19
(b)
20
(c)
21
(d)
22
Applying KCL, KVL
23
R Series, Parallel, Req
24
Voltage Divider
25
Sample FE exam pblm
26
(No Transcript)
27
Current Divider
28
Current Divider
29
Current Divider
30
Equivalent Circuits
31
FE Exam Question
32
Z (Impedance)

• Resistor
• Inductor
• Capacitor

33
AC Calculations (RMS value)
34
Power Dissipated in the resistor

• Impedance example

35
Operational Amplifier

• Inverting
• Non inverting amplifier

36
Equivalent Capacitance and Inductance Calculations

• Series, Parallel

37
FE Exam Question
38
FE Exam Question
39
Energy Stored in Capacitor
40
Thevinin and norton using Source Transformation
41
Find the power associated with 6V
42
Step by Step Simplification of a circuit by
Source Transformation technique
43
Sample Quick Question