Sunday, August 30, 2015

Reading Responses 8.31.15

Manga Guide
  • Voltage: difference in potential
  • AMP: unit representing electrical current
  • current: amount of electricity flowing through electrical line
  • watt: unit representing electric power (consumed power)
  • power (W) = voltage(V) x current(A)
    • A = W/V
  • Safety Breakers in the box thingy with switches are used to stop when there is too much electricity flowing through
  • Rated Current: value determined for normal electrical outlet


Chapter 2 Arduino
  • Anode is the positive side and cathode is the negative side.
  • Resistance is how easy or how difficult the current can flow. this is determined by resistors that resist current. It can be like a pipe that lets a lot of water through (low resistance) or very little water (low Resistance)
  • Ohm’s Law
    • voltage difference in volts (V) = current in amps(I) x Resistance in ohms(R)
    • Can be used to figure out which resistor value to use by solving for R
      • R = V/I
  • A common power rating for resistors is 1/8 of a watt (abbreviated as W, milliwatts as mW)
    • Power in watts(P) = IV

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