EGR 101
EXAM #2
Chapter 5 Parallel Circuits
Resistors in parallel
Parallel Components have the same Voltage
Combine as Reciprocals
Special Cases
Identical Resistors
10:1 Factor
Chapter 6 Series – Parallel Circuits
Series – Parallel Combinations
Parallel – Series Combinations
Bridge Circuits
Balanced or Unbalanced
Chapter 12
Capacitors
Capacitance
Calculation of Capacitance
Permittivity
Vacuum, or Free Space
Relative Permittivity
Watch for Units
Capacitors in Series
Combine like Resistors in Parallel – Reciprocal
Capacitors in Parallel
Combine like resistors in Series – Add Together
Voltage Rating
Polarity of an Electrolytic Capacitor
Time Constant
RC = time constant
5 time constants for COMPLETE Charging or
Discharging
Exponentials and Natural Logs
Determine times of Charging or Discharging
AC Circuits
Sinusoidal Sources
Write the expression for a sinusoidal source
Convert Radians to Degrees/Degrees to Radians
Amplitude (Vpk)
Peak
Peak – to – Peak
Frequency
Linear frequency f, in Hz
Angular Frequency, ὠ in radians/sec
Oscilloscope Readings V/div or time/div
Voltage
Period
Frequency
555Timer
Astable Multivibrator
Recognize the circuit diagram
Frequency
Pulse Width
Space Width
Duty Cycle