Cfesa electric - Study guides, Class notes & Summaries

Voltage - Potential difference or driving force of electrons between two lines Current - Measured in amps. Movement of electrons through a circuit when a difference of potential exists. Direct current (DC) - Circuit electrons flow in only one direction from negative to positive. Frequency - (Hertz) number of times the alternating current changes from 0 to its peak positive then zero to peak negative then back to zero. Power - Amount of energy used. Determined by voltage, current, and resis...

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 suppli...

Cfesa electric Exam Study Guide with Complete Solutions Voltage - Answer️️ -Potential difference or driving force of electrons between two lines Current - Answer️️ -Measured in amps. Movement of electrons through a circuit when a difference of potential exists. Direct current (DC) - Answer️️ -Circuit electrons flow in only one direction from negative to positive. Frequency - Answer️️ -(Hertz) number of times the alternating current changes from 0 to its peak positive the...

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