2006-06-21 23:25:04 · 9 answers · asked by ankita k 1 in Education & Reference ➔ Higher Education (University +)
According to www.dictionary.com
Electric Current- A flow of electric charge.The amount of electric charge flowing past a specified circuit point per unit time.
Electric Volatage- the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts. Basically,
electrical potential or potential difference expressed in volts
2006-06-21 23:33:06 · answer #1 · answered by monavyas15 4 · 0⤊ 0⤋
The magnitude of an electric current is defined as the time derivative of electric charge:
Voltage is the difference of electrical potential between two points of an electrical network, expressed in volts [1]. It is a measure of the ability of an electric field to cause an electric current in an electrical conductor.
2006-06-21 23:30:51 · answer #2 · answered by kadambari 2 · 0⤊ 0⤋
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.
Given two points in the space, called A and B, voltage is the difference of electric potentials between those two points. From the definition of electric potential it follows that: Voltage is electric potential energy per unit charge, measured in joules per coulomb ( = volts).
2015-07-27 18:31:16 · answer #3 · answered by john 4 · 0⤊ 0⤋
Electric current is the rate of charge flow past a given point in an electric circuit, measured in coulombs/second which is named amperes. In most DC electric circuits, it can be assumed that the resistance to current flow is a constant so that the current in the circuit is related to voltage and resistance by Ohm's law.
Voltage is electric potential energy per unit charge, measured in joules per coulomb ( = volts). It is often referred to as "electric potential", which then must be distinguished from electric potential energy by noting that the "potential" is a "per-unit-charge" quantity. Like mechanical potential energy, the zero of potential can be chosen at any point, so the difference in voltage is the quantity which is physically meaningful. The difference in voltage measured when moving from point A to point B is equal to the work which would have to be done, per unit charge, against the electric field to move the charge from A to B.
2006-06-21 23:36:03 · answer #4 · answered by Milos 1 · 0⤊ 0⤋
Electric current is defined as the rate at which charge flows through a surface (the cross section of a wire, for example). Despite referring to many different things, the word current is often used by itself instead of the longer, more formal "electric current". The adjective "electrical" is implied by the context of the situation being described. The phrase "current through a toaster" surely refers to the flow of electrons through the heating element and not the flow of slices of bread through the slots.
We define voltage as the amount of potential energy between two points on a circuit. One point has more charge than another. This difference in charge between the two points is called voltage. It is measured in volts, which, technically, is the potential energy difference between two points that will impart one joule of energy per coulomb of charge that passes through it (don’t panic if this makes no sense, all will be explained). The unit “volt” is named after the Italian physicist Alessandro Volta who invented what is considered the first chemical battery. Voltage is represented in equations and schematics by the letter “V”.
2015-07-20 21:41:54 · answer #5 · answered by shaun 4 · 0⤊ 0⤋
The speed of flow of electrons is generally termed as electric current whereas the difference between the powers or potential between any two different points within which current is flowing is termed as voltage (or potential difference).
Analogy with water flowing through a pipe:
current : speed
voltage : pressure
Current is a absolute term whereas voltage is a relative term.
2006-06-21 23:36:27 · answer #6 · answered by Anonymous · 0⤊ 0⤋
electric current is flow of electrons in one direction only.
electric voltage is field set up due to flow of current
mathematicallly
v=ir
2006-06-21 23:44:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Current mesured in Amps is the flow of electricty. Volts is the pressure of electricty.
That is oversimplified but the best way to think of it.
2006-06-21 23:29:37 · answer #8 · answered by Dee 4 · 0⤊ 0⤋
Take a bath, plug in your hairdryer and drop it into your bathwater and you'll understand what those words mean.
2006-06-21 23:29:26 · answer #9 · answered by Anonymous · 0⤊ 0⤋