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What are amps, watts, volts, and ohms?

What are amps, watts, volts, and ohms?. Three most basic units in electricity:. Voltage Current Resistance. Voltage is measured in volts Current is measured in amps Resistance is measured in ohms. Electrical system Vs. Plumbing System. Voltage is equivalent to water pressure

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What are amps, watts, volts, and ohms?

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  1. What are amps, watts, volts, and ohms?

  2. Three most basic units in electricity: • Voltage • Current • Resistance

  3. Voltage is measured in volts • Current is measured in amps • Resistance is measured in ohms

  4. Electrical system Vs. Plumbing System • Voltage is equivalent to water pressure • Current is equivalent to the flow rate • Resistance is like the pipe size

  5. Current (amps) = Volts / Resistance • A = V / R • If you want more electricity to come out of the wire, then either increase the pressure, or make the wires bigger • Increasing the voltage will make more current flow

  6. Im rick james • Power consumed by the resistance in electrical wires increases as the current going through the wires increases • Using higher voltage to reduce the current can make electrical systems more efficient

  7. Wattage = Electrical Power • Watts = Volts * Amps • W = VA • Electrical power = Voltage * Current • P = VI

  8. 1,000 watts = 1 Kilowatt • Kilowatt-hours = Usage of 1 kilowatt for one hour • 1,000 watt-hours = 1 kilowatt hour

  9. Improvement in Efficiency • Carmakers are moving toward a 42-volt electrical system from the current 12-volt systems. • This change will help cars meet the greater electrical demand placed on them without having to increase the size of the wires and generators to handle the greater current

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