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Resistance in a circuit is generally measured in units of ____. |
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What is the expression of Ohm's Law? |
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An operating lamp draws a current of .4 ampere. The amount of charge passing through the lamp in 10 seconds is? |
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An electric dryer consumes 6.0 x 106 joules of energy when operating at 220 volts for 30 minutes. During operation the dryer draws a current of approximately? |
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When 8.0 electronvolt photons strike a photo emissive surface, the maximum kinetic energy of ejected photoelectrons is 6.0 electronvolts. The work function of the photo emissive surface is? |
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A high resistance is connected in series with the internal coil of a galvanometer to make? |
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In a transformer, two coils are wound around a common iron core. To operate properly the transformer requires? |
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An alternating current source connecting to the primary coil |
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What device can be used to increase voltage from a source of direct current? |
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The transformer on a power pole steps down the voltage from 10,800 volts to 120 volts. If the secondary coil contains 360 turns, how many turns are found on the primary coil? |
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An electric motor draws 150 amperes of current while operating at 240 volts. What is the power rating of this motor? |
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What is the potential difference across a 2.0 ohm resistor that draws 2.0 coulombs of charge per second? |
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If a 15-ohm resistor is connected in parallel with a 30 ohm-resistor, the equivalent resistance is? |
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A metal wire has length L and cross-sectional area A. The resistance of the wire is directly proportional to |
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A wire carries a current of 2.0 amperes. How many electrons pass a given point in this wire in 1.0 second? |
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