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No, electric current is the rate at which electrons flow in a conductor.
The voltage is what makes the electrons move. They have different units of measurement
It's a bit confusing and a bit of a cheat really
Electrons are measured in units called Coulombs. And one coulomb is the number of electrons passing when a current of one ampere (amp) is said to be flowing for one second. One coulomb is a lot of electrons about six million million million of them in fact. If a current of one ampere) is flowing for one second. all these guys will be passing by.
We like to think they are moving at the speed of light as when we flick the switch hey presto we can see the light.
However the electron in the Coulomb gang are a bit like Mario and they are all over the place and really each electron only move about a quarter of a millimeter in that same second.
So how come we see the light go on straight away? Well that the cheat. Electrons in a wire are packed in so if we add on in at one end we push one out at the other.
so for the Coulomb gangs if one gang is moving (because of the voltage - which we haven't come to yet) one gang is moving out.
Now if the current is an alternating current - because it's been made to behave that way because of an alternating voltage was made at the power station - our coulomb gangs are not moving very far at all. In fact in England the current coming into our houses is alternating backwards and forwards at about 50 cycles/second. So in that second the Coulomb gang - all six million million million of them making up our current of one amp go backwards and forwards about a quarter of a millimetre 50 times/second.
Getting back to your voltage.
Voltage is also known as potential difference or an old name is electron moving force and this is the condition we create at the power station or in a battery or through static electricity by creating a positive and negative choice for our electrons.
There are two common important relationships between voltage and current.
Power measured in watts = volts x amps
Resistance measured in ohms = volts/amps.
I could go on forever but remember you can't really have current without volts and you can't really have volts without current. The way they relate to each other depends on where we are and what we are doing.
Hope this helps
Alex Houghton - ancient science teacher Chorley England.
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∙ 14y ago
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What causes a current in an electric circuit?
Voltage causes current to flow in an electric circuit.
Is an electric voltage a varying electric current that reprsents information?
false
What do you understand by electric current?
electric current is the flow of electrons due to external energy (emf) supplied by the voltage source.
What is the phase angle between voltage and current in a purely capacitive circuit?
Current leads voltage (or voltage lags current) by 90° in a purely capacitive circuit. Try to remember it this way: capacitors resist change in voltage, hence the voltage lags (they resist voltage change because the voltage first goes to charging up the electric field in the capacitor).Inductors resist change in current (energy in an inductor is in the form of magnetic fields, which are caused by the current through the wire). Remember an inductor is a coil (like an electromagnet, or a transformer).
What does a resistor do in an electric circuit?
Limits current flow and drops voltage.
What is the formula of electric current?
the formula for electric current is VI ,where v is voltage then I is the current. the unit used for current is ampere and volts for voltage. multiply the total I to the Voltage The formular of electric current is given by I=V/R ,I=P/V
What causes a electric current in a electric circuit?
Voltage causes current to flow in an electric circuit.
When does the electric current flow?
An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).
What is is the formula of current?
the formula for electric current is VI ,where v is voltage then I is the current. the unit used for current is ampere and volts for voltage. multiply the total I to the Voltage The formular of electric current is given by I=V/R ,I=P/V
What causes a current in an electric circuit?
Voltage causes current to flow in an electric circuit.
What is the difference in the current and voltage?
Current (amperes) is the rate of flow of electric charge, in coulombs per second. Voltage, on the other hand, is the electric potential of that charge, in joules per coulomb.Current and voltage are related to resistance by Ohm's Law, which states that voltage is equal to current times resistance.There is a tendency to misuse the term "current", and to apply it, for instance as "an electric current of 120 volts". This usage is incorrect. Current is current, and voltage is voltage, as noted above.
Who is resposible voltage or current for electric shock?
It is impossible to separate the two. The voltage determines the magnitude of the current, and the current causes the damage. So, they are both responsible for electric shock.
Is an electric voltage a varying electric current that reprsents information?
false
Is emf current greater than current?
EMF is electromotive force. It is another name for voltage. Voltage is electric potential in joules per coulomb. Current is electric flow, in amperes. Amperes are coulombs per second. Voltage and current are not the same thing, and "emf current", or "voltage current" does not make sense.
Is units of electric current a volt?
Electric current is measured in amps not voltsElectric voltage is measured in volts.
What is a device that changes electric current into a different voltage?
Nothing can change electric current to voltage. You can compare "current " to rate of flow, while "voltage" is the energy level. Transformers can be used to increase or decrease the voltages of alternating current as is done from 'street power' to domestic power.
Why electric current across a wire drops?
Electric current does not drop. Electric voltage, however, drops across a wire because the wire has non-zero resistance. (Do not confuse electric current with electric voltage - they are not the same.)The reason current does not drop is that, in a series circuit, according to Kirchoff's current law, the current at every point in a series circuit is the same.
