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Is the potential difference across an electric circuit with no element drawing current from it the same at every pt?
Wiki User
∙ 12y ago
there should not be any diff.because
Wiki User
∙ 12y ago
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What is the electric potential when the electric field is zero?
any gadget won't work, as no current would be able to pass due to lack of electric potential difference
What does an electric circuit provide for the flow of electric current?
It doesn't necessarily have a 'function'; it is simply the natural consequence of applying a potential difference across a conductor. However, this is usually done for a reason, and its function is then derived from one or other of the three effects of that current:heating effect -e.g. electric heatersmagnetic effect -e.g. electric motorschemical effect -e.g. electrolysis (electroplating)
What is the ratio of potential difference to the current of a circuit?
The name given by engineers to the ratio of "electrical potential difference" (expressed in volts) to "rate of current flow" (expressed in amperes) is "resistance" (expressed in ohms).
What is connecting a circuit for safety precaution to earth?
For various reason some charges may accumulated on an electric equipment. If any personal touch it he/she may get shock. That is why an extra path is provided as ground connection to remove these charges from electric body to the Earth. ========================================================== I was answering contemporaneously, the above answer is correct :-) If two points are charged and they are connected by a perfect conductor, the current flowing between the two points depends on the potential due to the charge difference. The current flows moving electrons from the negative to the positive element up to the moment in which the charge difference is nullified and no current flows due to the presence of no potential difference. If I connect a charged element to a very large, uncharged body, almost all the charge of the charged element is discharged towards the large body, creating a current burst. This happens when I touch with my body a charged element in a circuit: my body is big and neutral and it works as a sort of zero potential element, so that all the charges are discharged towards my body in a current burst that can be quite dangerous. Earth is much bigger with respect to my body, if I create a connection between the circuit and the earth that acts as a potential reference, if I touch the circuit I am at the same potential of earth, at zero potential, but no discharge happens since all possible charges have been already discharged towards Earth.
What is electric current current?
The correct term for the flow of electricity is current. Current is the number of electrons flowing per second in a circuit. The unit of electrical current flow is called the ampere. When 6.28 billion electrons pass a given point, this is called 1 coulomb. 1 coulomb per second is equal to 1 amp of current. Current flow is measured with an ammeter.
What do you nned to make an electric current?
An electrical potential difference (aka. a difference in applied voltage), and a conductor / circuit. Electrons would help too.
How can you measure electric potential and electric current?
Potential . . .Always measured as a potential difference between two points.The most practical way to do that is with a voltemeter connectedin parallel with any circuit between the two points.Electric current . . .The most practical way to measure current is with an ammeter connectedin series in the path of the current.
In an electric circuit resistance is?
Resistance is the opposition to the flow of electric current through a conductor. It is defined as the ratio of the potential difference (volts) between the ends of the conductor to the magnitude of the current (amps) through the conductor.
What is th potential difference that causes charges to move in a circuit?
The answer is voltage, resistance, electric discharge, and current. It is caused by a difference in energy stability between two points that favors a charge to move down a potential difference.
How current electricity moves in a circuit?
You need a source of electrical potential difference, also known as voltage (which is the technical term for what for you call "electric pressure"). The easiest and most common voltage source is a household battery. Hook up the positive electrode of the battery using a conductor (eg. a copper wire) to one end of your circuit and the negative electrode to the other end, and voila, you'll have electric current flowing through your circuit.
What causes an elecrtic current to flow in a circuit?
The movement of electron towards the high potential causes electric current to flow in a circuit.
8 If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V the current flowing through the circuit is?
There is a simple equation relating voltage (properly potential difference), current and resistance: V=IR Where V=potential difference, I=current and R=resistance So to answer: I=60/12 I=5
How does the increase or decrease of potential difference affect the flow of the electric current?
Increase or decrease in potential results in the change in direction of the flow of electric current.
What type of current has steady potential difference across a circuit?
That would be DC or Direct Current.
When does current stop flowing in a circuit?
Current flows in a circuit when there is a difference in electronic potential between two points.
What causes potential difference?
A potential difference causes an electric current. Think of it like a river : the source of water is the most elevated point of the river, so the water has a lot of gravitational potential energy. The end of the river is the lowest point of it, so the water has very low gravitational potential energy. What happens between these two points? Water flows! This analogy can be applied to electricity; the potential difference is caused, for example, by a battery in an electric circuit.
How is electrical current produced?
A potential difference (volts) is set up between the two ends of a conductor. If there are any electrons available to move, then their negative electric charges persuade them to move away from the more negative potential and toward the more positive potential, resulting in current.
