What is the formula for electric power? A. P = IV B. P = VI C. P = VR D. P = IR 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“The formula for electric power is P = VI, where P is power, V is voltage, and I is current.”。
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Potential energy is energy held by an object that has yet to be released. Potential energy is often due to an object's height in a gravity field, electric charge, or stresses within the object. It is often referred to as "stored energy" or classified by its type. For example: A skydi...
Electric potential:The electric potential is defined as the amount of work required to move a unit charge from a reference point to any specific point in the presence of an electric field. It is also defined as the electric potential energy per unit charge. It is denoted by {eq}V {/eq}...
, it resists the change in the current of the element, whereas in an electric field it resists the change in voltage of the element. it is mathematically represented by the letter x and has its unit of measurement in the form of the greek symbol ohm . it is also known as the ...
According to electron theory, when voltage or potential difference is applied across the conductor, charged particles flow through the circuit, which constitutes an electric current. These charged particles flow from higher potential to lower potential, i.e., from a positive terminal to the battery’...
An electric field is a region of space around an electrically charged particle or object in which an electric charge would feel force.
1. What is a nominal current? Electrical Current: Therelationship between volts, amps, and power usage is defined by the formula:P=V×IorPower(Watts)=PotentialEnergy(Volts)×Amps(IntensityofElectricalCurrent This formula allows us to determine how much current we expect to flow through a circuit...
Electric power definition: Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit. It is the rate of doing work.In terms of an electric circuit, electrical power is the rate, per unit time, at which electrical energy is transferred by ...
"Voltage" (V) is the potential for energy to move and is analogous to water pressure. The characteristics of voltage are like that of water flowing through pipes. This is known as the "water-flow analogy", which is sometimes used to explain electric circuits by comparing them with a closed...