Exam 4: Ohms Law

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The maximum allowable voltage that a resistor can safely withstand without internal arcing is called the

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One ______________ is the amount of current through a one-ohm resistance that has one volt of potential difference applied across it.

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What is the resistor safety factor that allows the resistor to operate without breaking down from excessive heat?

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Some material whose elements have an atomic structure that allows free electrons to drift through it with more or less force applied is a

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A graph that shows how much current a resistor allows for different voltages is called the

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What is the power in a circuit where the source of 100 V produces 2 A in a 50-? R?

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Ohm's law states that the amount of current is directly proportional to the voltage and inversely proportional to the resistance.

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Ohm's law states that current is ______________ proportional to resistance.

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Whenever there is current through a resistance, it must have a potential difference across its two ends equal to the IR sum.

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A resistance can be considered some material whose elements have an atomic structure that allows free electrons to drift through it with more or less force applied.

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One ampere is the amount of current through a one-ohm resistance that has one volt of potential difference applied across it.

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When the current flow in a circuit becomes excessive, a resistor is more likely to

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One horsepower (hp) is equal to three-quarter kilowatt.

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A straight-line graph shows that a resistor is nonlinear.

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The Ohm's law formula states that V and I are ______________ proportional for any one value of R.

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The rate at which charge is forced to move by voltage is called

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Whenever there is current through a resistance, it must have a potential difference across its two ends equal to the ______________ product.

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A graph referred to as the volt-ampere characteristic of R shows how much resistance exists for different currents.

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One of the best safety rules is to

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The fact is that high-voltage circuits usually do have small values of current in electronic equipment.

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