We define voltage as the amount of potential energy between two points on a circuit. One point has more charge than
another. This difference in charge between the two points is called voltage. It is measured in volts, which, technically, is the
potential energy difference between two points that will impart one joule of energy per coulomb of charge that passes
through it (don’t panic if this makes no sense, all will be explained). The unit “volt” is named after the Italian physicist
Alessandro Volta who invented what is considered the first chemical battery. Voltage is represented in equations and
schematics by the letter “V”.
When describing voltage, current, and resistance, a common analogy is a water tank. In this analogy, charge is represented
by the water amount, voltage is represented by the water pressure, and current is represented by the water flow. So for this
analogy, remember:
Water = Charge
Pressure = Voltage
Flow = Current
We define voltage as the amount of potential energy between two points on a circuit. One point has more charge thananother. This difference in charge between the two points is called voltage. It is measured in volts, which, technically, is thepotential energy difference between two points that will impart one joule of energy per coulomb of charge that passesthrough it (don’t panic if this makes no sense, all will be explained). The unit “volt” is named after the Italian physicistAlessandro Volta who invented what is considered the first chemical battery. Voltage is represented in equations andschematics by the letter “V”.When describing voltage, current, and resistance, a common analogy is a water tank. In this analogy, charge is representedby the water amount, voltage is represented by the water pressure, and current is represented by the water flow. So for thisanalogy, remember:Water = ChargePressure = VoltageFlow = Current
การแปล กรุณารอสักครู่..
