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E l e c t r i c a l a n d C o m p u t e r E n g i n e e r i n gF E R e v i e w
2/7/2018 Page Title 1
J o h n S c a l z o , S e n i o r I n s t r u c t o r
j s c a l z 1 @ l s u . e d u
• Physics Review Capacitance
• Direct Current
• Resistance
• KVL, KCL
• Charging/Discharging a Capacitor
• Inductance
• Symbols
• Complex Numbers
• AC Circuits
• Complex Power
Topics to Cover in the ECE review for the FE:
2/7/2018 2Table of Contents
2/7/2018 4Electrical and Computer Engineering
Physics Review:
• Electric Field due to a single charge
• Uniform electric field due to a uniform distribution of surface charge (Gauss’s law):
• Electric potential due to a single charge:
• Potential difference in uniform electric field:
∆𝑉𝑉 = 𝐸𝐸𝐸𝐸• Potential Energy:
∆𝑈𝑈 = 𝑞𝑞∆𝑉𝑉
• Charge in a uniform electric field: F = qE qE=ma 𝑞𝑞∆𝑉𝑉 = 𝐾𝐾𝑓𝑓 − 𝐾𝐾𝑖𝑖
𝐸𝐸 = 𝑘𝑘𝑞𝑞𝑟𝑟2 𝑘𝑘 = 8.89x109 Nm2/C2
𝐸𝐸 = 𝜎𝜎∈0
surface charge densitypermittivity of free space
𝑉𝑉 =𝑘𝑘𝑞𝑞𝑟𝑟
2/7/2018 6Parallel Plate Capacitance
Capacitance (Farads)𝐶𝐶 = 𝜀𝜀𝜀𝜀𝑑𝑑
Energy stored in Capacitance
𝐶𝐶 = 𝑄𝑄∆𝑉𝑉
2/7/2018 9Page Title
Switch to lecture notes
• DC Circuit Analysis• AC Steady State Circuit Analysis• Steady State Power (Complex Power)
• power factor• Power factor correction
• Diodes• Op-Amps• Transistors