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Voltage is electric pressure. It is similar to psi in a gas line.
What is the scientific name for voltage and what letter is used to identify it?
Electromotive Force
E
Amperage is the flow of electrons. It is similar to gallons per minute or litres per second of flow in a pipe.
What is another word to describe amperage and what letter is used to identify it?
Induced current
I
An Ohm is the resistance of a wire or circuit to flow. What happens when there is a higher resistance to flow? What letter identifies resistance in Ohms?
Less flow
R
Ohms law paradigm
I. R
In Watts Law, Volt Amps = Watts( W) or Power
Voltage = E or V
Amperage equals I or A.
There are two watts different ways to identify a Watts Law paradigm.
Remember, Watts was a baker
W (watts).
A( Amps) V ( voltage)
Or
P ( Power)
I ( Amps) E ( voltage)
Watts Law states that apparent power (P)is equal to voltage X amperage.
P = V X A
Voltage x Amperage = VA ( volt amps)
The Maximum Amperage can be determined by dividing the VA rating by the voltage supplied to the circuit.
If a 24 volt transformer has a rating of 40 VA, what is the maximum output in amps?
40va / 24v = 1.6 Amps
The 3 devices needed to make a circuit are ?
A power source
A switch
A load ( consumer)
A volt meter will display the difference between 2 leads
If the voltage in the read lead is 24 and the voltage on the black is 0 , what will the meter display?
24
How must a volt meter be connected?
In parallel with the power on
The Ohm meter will display the resistance of the circuit in OHMS. How must it be connected?
In parallel with the power off
Leaving the power on may damage the meter.
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