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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. The standard abbreviations for the units are 1 A = 1C/s.
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Which part of a circuit is a current?
Current is the flow of electric charge or the rate of the flow of an electric charge through a conductor.
Units used to measure the rate of electron flow?
In an ammeter, the magnitude of the electric current - that which is measured in amperes - is measured via the magnetic deflection it causes in a needle. Note that this measures the flow of electric charge; it doesn't tell you specifically whether what is moving is electrons.
What measures the flowing in a circuit?
The flow in a circuit is called the electric current and it is measured by voltages. The number of volts that are present in the charge will determine the strength of the electric current.
Is it true that In Ohms law the variable i represents the rate of flow of charge which is called impedance?
"I" represents the current which is the flow of electric charge. Impedance is the measure of the opposition to the flow of current at a given voltage usually in a.c. circuits.
What is true about current it is related to voltage and resistance by ohms law it is the flow of electric charges it is the excess accumulation of electric charge?
Electromotive force, or voltage, is measured in volts. It makes current flow in electric circuits. It is related to current and resistance by Ohm's law. And I don't know what you mean by "excess accumulation of electric charge"... Voltage is energy per charge, or joules per coulomb. That energy overcomes resistance in ohms and forces a current in coulombs per second (amperes) to flow. This is ohm's law; that one volt is one ampere divided by one ohm. Voltage is measured as a potential difference between two points, whereas current is a charge passing a single point. In moving from one level of energy to another, that charge does work. The watt is one joule per second, and is also volts times amperes. Have I clarified it enough, or do you need more information?
