AC? DC? You Decide!
“This type of current flows in only one direction and is commonly supplied by batteries.”
What is Direct Current (DC)?
Brown, black, red
What is 1000 ohms (1k ohm)?
“This unit of measurement is used to quantify electrical current.”
What is the ampere?
“Horsepower is commonly converted into this equivalent electrical unit.”
What are watts?
“According to Ohm’s Law, voltage equals current multiplied by this.”
What is resistance?
“In household electrical systems in the United States, this type of current changes direction 60 times per second.”
What is Alternating Current (AC)?
Brown, green, black
What is 15 ohms?
“In a parallel circuit, voltage remains constant while this electrical quantity divides among the branches.”
What is current?
“Electrical power is calculated by multiplying voltage by this electrical quantity.”
What is current?
“In a series circuit, the total source voltage is equal to the sum of these across each component.”
What are voltage drops?
“This electrical component opposes changes in current flow and stores energy in a magnetic field.”
What is an inductor?
Red, red, red
What is 2,200 ohms (2.2k ohms)?
“This instrument is connected in series with a circuit to measure current flow.”
What is an ammeter?
“This device measures the electrical power consumed in a home or business.”
What is a wattmeter?
“Most standard household outlets in the United States supply approximately this voltage.”
What is 120 volts?
“The effective value of AC voltage commonly used for power calculations is known by this three-letter abbreviation.”
What is RMS (Root Mean Square)?
Yellow, violet, orange
What is 47,000 ohms (47k ohms)?
“The movement of these negatively charged particles creates electrical current in most conductors.”
What are electrons?
“A 100-watt light bulb converts electrical energy into these two main forms of energy.”
What are light and heat?
“A battery connected backwards in a circuit has this voltage condition relative to the intended polarity.”
What is reversed polarity?
“When voltage and current waveforms in an AC circuit are not aligned, the difference between them is called this.”
What is phase angle?
Grey, red, yellow
What is 820,000 ohms (820k ohms)?
“A sudden, unintended path of very low resistance causing excessive current flow is called this.”
What is a short circuit?
“This formula expresses electrical power as current squared times resistance.”
What is P = I²R?
“The peak value of AC voltage compared to its effective value is commonly described using this three-letter term.”
What is RMS?