In 0.025 W, there are
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Electrical Engineering · all questionsEnergy And Power
Energy And Power
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Three hundred joules of energy are consumed in 15 s. The power is
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A 68 Ω resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is
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A 33 Ω half-watt resistor and a 330 Ω half-watt resistor are connected across a 12 V source. Which one(s) will overheat?
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A battery is one type of power supply that converts chemical energy into electrical energy.
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When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
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The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be
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A 75 Ω load uses 2 W of power. The output voltage of the power supply is approximately
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A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?
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When the current through a 12 kΩ resistor is 8 mA, the power is
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The watt is the unit of power.
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A resistor normally opens when it burns out.
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The power rating of a resistor determines the minimum power that it can handle safely.
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Power rating is related to resistance value.
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