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Voltage is energy per charge, actually joules per coulomb, so think of voltage as electromotive force that pushes charge around. In fact, another name for voltage is electromotive force. Voltage is manifest as a differential energy between two points, where the energy "wants" to go from the higher energy point to the lower energy point. That is how voltage causes current.
Current is charge flow, actually coulombs per second, which is the same as the ampere.
Ohm's Law defines a unit of resistance called an ohm which is the resistance that one volt will require to push one ampere through. If you do dimensional analysis on the ohm, given the the ohm is the volt divided by the ampere, you discover that the ohm is actually a joule-second per coulomb squared - much easier to just call it an ohm.
Pushing coulombs from one energy level to another involves work. Multiply voltage by current, and you get watts, or joules per second.
Take some time to study this and understand it, and you are well on your way to a basic understanding of electricity 101. I know I answered more than was asked, but some of it was necessary in order to explain things, and the rest was just for the sake of completeness.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoA: Voltage is a potential or EMF this cause electron to leave orbit lodging themselves into the next atom but now there is too many in this electron forcing them to leave again and so forth
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What creates a voltage?
the amount of stuff in it makes it do stuff like voltage. ANSWER: In the sky particles motion creates a potential magnetics and motion will do the same thing. Separation of electric charges (eg by a moving magnetic field as in a dynamo). The more you separate them the higher the voltage. There are chemical ways of doing it, as in a battery.
Will the negative charges move along the ebonite rod if a voltage is applied across it ends?
no
What is true about current?
It is measured in amps. It is related to voltage and resistance by Ohm's Law. It is the flow of electric charges.
How can capacitor smooth or reduce the ripple of the voltage produced by the rectifier?
when rectifier is on, the capacitor is almost transparent (it charges to the voltage provided from the rectifier) when rectifier is off, capacitor holds the peak voltage since it stored a charge during rectifier on time.
Is a UJT a voltage controlled or current controlled device?
voltageCurrent between the two bases of the UJT sets up a voltage gradient in the semiconductor. When the voltage on the emitter of the UJT rises high enough to forward bias the emitter-base junction at the voltage of the interbase gradient where the emitter is located, the UJT "turns on".
What creates a voltage?
the amount of stuff in it makes it do stuff like voltage. ANSWER: In the sky particles motion creates a potential magnetics and motion will do the same thing. Separation of electric charges (eg by a moving magnetic field as in a dynamo). The more you separate them the higher the voltage. There are chemical ways of doing it, as in a battery.
What is call a force that pushes charges along?
The voltage.
What does voltage do to charges in a circuit?
yeah about that...
The plaintiff sets forth the charges against the defendant?
"The plaintiff sets forth the charges" means, the plaintiff is stating or bringing the reasons for the complaint.
What one process sets the energy in the transfer atmosphere in motion?
Atmospheric circulation sets the energy in the transfer atmosphere in motion
Why charges are not moving in electrostatics?
It is because electrostatics mean the charges which are static and not in motion.
How does voltage gradient affect separation of charged particles in an electric field?
There is a direct relationship between the voltage gradient of an electric field and the separation of the charges. Higher voltage gradients will separate charges farther.
How is an electrical current related to the motion of charges on an atomic scale?
For most practical purposes, the electrical current IS the motion of charges. To be precise, it is the AVERAGE motion of charges per second; that is, there are also random movements to and fro, that are usually not considered when talking about the current.
What are electrical charges that are in motion?
Static electricity
What are electrical charges that are not in motion?
Static electricity
What happens to the current in a circuit as a capacitor charges?
What happens to the current in a circuit as a capacitor charges depends on the circuit. As a capacitor charges, the voltage drop across it increases. In a typical circuit with a constant voltage source and a resistor charging the capacitor, then the current in the circuit will decrease logarithmically over time as the capacitor charges, with the end result that the current is zero, and the voltage across the capacitor is the same as the voltage source.
Definition of a electrostatic?
electrostatics is the study of charges at rest.when charges are in motion , it is known as electromagnetic.
