Basic Mathematics for Electronics

[last updated: 2022-07-25]
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• Calculations for DC electronics:
      that is, electronics that don't include AC, RF, or impedance,
      deal with just ohms, volts, amps, and watts.
  For these calculations, all you need are Ohm's Law and the Power Law.
  • Ohm's Law:
    • E = I * R
    • E must be in volts, I in amps, and R in ohms
      
      
      
      

  • Power Law:
    • P = E * I
    • P must be in watts, E in volts, and I in amps
      
      
• ... Later ... Questions on Technician Exam that require math calculations dealing with DC electronics

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