Electric power equation
[DOC File]California State Polytechnic University, Pomona
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What is the equation for electric power? What happens when the poles of 2 magnets are brought close together? What causes a magnet to attract or repel another magnet? How is Earth’s magnetic field oriented? What happens to a compass near a wire that is carrying a circuit?
[DOCX File]Ohm's Law and Power Equation Practice Worksheet
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a. current b. potential c. voltage d. power. 8. The unit of electric power is the _____. a. Ampere b. Volt c. Watt d. Joule. 9. Mechanical power (discussed in a previous unit) is the rate at which work is done on an object. Electrical power is the rate at which work is done on a charge (by the battery) or on an electrical device (by the charge).
[DOC File]Electric Potential Difference
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Electric power units of measure are watts, just like the units used to express mechanical power. Electrical power is dependent upon the measurements of electrical potential (voltage) and electrical current (amperage). The equation to calculate electrical power is written as P = V I.
Electrical Formulas - Engineering ToolBox
Nomenclature: Economists like to use q for supply and x for demand, of anything, including electric power. Power engineers like to use P for any real power quantity: supply, demand (load), or flow, with the only distinguishing difference being (sometimes) the …
[DOC File]Topic #20, Electric Currents and Electric Circuits
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The power then travels 6000 feet through number 2/0, 15 kV, mine power feeder cable to an underground power center. The power center has a secondary voltage of 1040 volts and is rated 1350 kVA with 5.0% impedance. Power then travels 850 feet through number 2/0, 2 kV, shielded trailing cable to a continuous miner.
[DOC File]Honors Physics Electric Potential Energy and Potential ...
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Regardless of the conversion process, electrical energy consists of three basic components: current, voltage, and resistance. Current is the net transfer of electric charge per unit of time. Voltage is the amount of work required to move a charge from one point …
[DOC File]The first step in analyzing a power system is to get the ...
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Jan 04, 2014 · The equation to determine the resistance of a long conductor. Short lengths of conductors are considered to have zero resistance, but long power lines and things like that have a significant amount of resistance. This equation will figure it all out. This is Ohm’s law. A very important equation in the world of electricity. Electric power.
[DOCX File]Activity 1.2.3 Electrical Circuits – Physical
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A power plant having an efficiency of 30% burns 7200 tonnes (1 tonne is 1000kg) of coal per day. The coal produces 2 × 104 Btu/kg. What is the electric power output of the plant in kilowatts? 2.75×103. 7.25×102. 6.25×107. 5.72×106. 6.75×104. 5.27×105. Cogeneration _____ is a vague dream not yet proven to be practical
[DOC File]AP Physics - Electric Circuits, DC
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, then electric potential of two point charges in between the charges is . if . r1. and . r2. are to be positive. Setting . V(xo) equal to zero and solving for . xo, (C) Find the work to move a 13.0 C from the origin to a point 50.0 cm from the origin on the positive x-axis.
[DOC File]The Power Flow Equations
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Calculate the amount of power dissipated by this electric heating element, if the generator's output voltage is 110 volts and the heater's resistance is 2.5 ohms: ( P = V2/ R ) Now, calculate the power dissipated by the same heater if the generator's output voltage is doubled.
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