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41 Cards in this Set
- Front
- Back
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Electrons will flow because they are on the outside or inside of the atom?
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Outside
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What is the unit of resistance in electricity?
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Ohms
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What is the thickness of a wire?
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Gauge
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What is the charge on a proton, positive or negative?
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Positive
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What is the thing outside of your home that changes the voltage into 220?
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Transformer
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What is the greek symbol for the unit Ohm?
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Omega
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What is electrical potential energy?
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Voltage
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Opposite charges will do this.
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attract
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What happens to resistance as the temperature is increased?
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The resistance gets higher
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What type of phase electricity would a factory or something that needs a lot of power?
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Three phase
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What happens to a wire's resistance as the wire gets thicker?
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The resistance lowers
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How many times per minute do a three phase electricity hits 0 volts?
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zero
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What is friction in electricity known as?
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resistance
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What does the "A" stand for in AC?
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Alternating
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This is the same thing as a joule/coulomb...
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volt
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What is the rate of doing electrical work?
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watt
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What type of current does a battery produce?
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direct (DC)
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What is the third prong on a plug called and what does it do?
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It is called a ground and it is where we hope current flows if an electrical device is not functioning correctly.
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You generate this when you are touching the ground and high voltage at the same time.
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potential difference
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What is the frequency of AC current in Europe?
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Fifty
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What is the name of the generator that produces AC current?
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alternator
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What is the device in your home that prevents you from drawing too much current and will shut off the power?
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circuit breaker
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One of these is equal to 6.26 x 10~18
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coulomb
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What is the same thing as a coulomb per second?
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Amp
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What is the flow of electrons called?
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current
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Using ohm's law, what happens to current if resistance doubles?
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The current decreases into half of what it was
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What is the law that shows the relationship between voltage, current and resistance?
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ohm's law
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What resource does Ohio produce the most or their electricity from?
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coal
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What is the on an electron (positive or negative)?
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negative
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What is the unit of current?
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Amps
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What is the form of energy that deals with moving charge?
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electricity
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When an electrical circuit is overloaded and the circuit shuts-off we say that it did this...
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trip
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What is the flow of electrons called?
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current
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Who invented AC?
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Tesla
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Using the ohm's law, what happens to current if voltage doubles?
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doubles
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What machine generates charge?
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vandegraf
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What charge is made from friction?
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static
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What is the frequency of AC current in our homes?
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sixty
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What type of phase electricity that comes into your home?
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one phase
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What has less resistance, a dry human body or a wet human body?
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Wet
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Like charges will do this.
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Repel
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