Cfesa electrical chapter 1
What does kilo mean? - 1000
If a circuit is supplied with 100 volts and the total resistance of the circuit is 200 ohms, how much
current will the circuit draw? - 100v/200ohm = 0.5A
What does micro mean? - millionth
What does mega mean? - million
What does milli mean? - 1/1000
If you know the wattage and voltage, how do you determine the current? - Current =
wattage/voltage
How much voltage is on one hot leg? - N/A, voltage is a differential measurement
If a piece of equipment is supplied 208v and the amp meter clamped to the hot line reads 20a, what js
the wattage of the load? - 208v x 20a = 4160watts
What does kilo mean? - 1000
If a circuit is supplied with 100 volts and the total resistance of the circuit is 200 ohms, how much
current will the circuit draw? - 100v/200ohm = 0.5A
What does micro mean? - millionth
What does mega mean? - million
What does milli mean? - 1/1000
If you know the wattage and voltage, how do you determine the current? - Current =
wattage/voltage
How much voltage is on one hot leg? - N/A, voltage is a differential measurement
If a piece of equipment is supplied 208v and the amp meter clamped to the hot line reads 20a, what js
the wattage of the load? - 208v x 20a = 4160watts
