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Cards In This Set
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The three movements of Electricity
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1. Electrical Current2. Electrical Pressure3. Electrical Resistance
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What is Electrical Current?
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The flow of electricity, usually along a conductor- the movement of electrons through a circuit
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What is Electrical Pressure?
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Causes the current to flow, measured in volts. (driving force that carries the electric current)
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What is Electrical Resistance?
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Regulates the flow of the current
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What is a coulomb?
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Measurement of electricity
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How is Electrical Pressure measured?
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Through Voltage or Volt
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What is an Ohm?
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Units of electrical resistance
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What is Ohm's Law?
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The current in any electric circuit is equal to the voltage applied to the circuit,divided by the resistance of the circuit. Formula is as follows:
I=V/R I= Current strength in ampsR= Resistance of the circuitV= Voltage applied to the circuit |
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Ohm's Law Triangle's
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 V=IRR=V/II=V/R |
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How is Resistance measured?
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Dividing a voltmeter by the ammeter or Us an ohmmeter or "megger"
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How do you regulate and control an electrical current?
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By inserting or removing resistance into or from a circuit
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What is the Heating Effect?
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The overcoming of resistance from a electrical current that creates heat from such action.
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What is the Magnetic Effect?
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A wire carrying a current of electricity deflects a magnetic needle.
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What is the Chemical Effect?
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When an electrical current decomposes certain chemical compounds when it is passed through them, breaking the compounds into their constituent parts.
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What is the Physiological Effect?
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When an electrical current passes through the body it creates muscular contractions that result from th physiological effects
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