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What are two of the main requirements that allow electric charge to flow in an electric circuit?
Reeper405
In order to have a valid electric circuit, two requirements must be met: there must be a potential difference within it (measured in Volts), and current must be flowing through it (measured in Amperes). That implies that the three basic blocks of a circuit are present - a power source (that defines the potential and supplies the current), conductors (which connect the power source to the load), and the load, which consumes current to do some work.
Coincidentally, lack of a potential difference means that there are no charges "willing" to travel between point A and point B, which means that there is no current flowing from A to B (or otherwise), in regard to just these two measurement points. Of course, if you connect just your voltmeter to a battery, you will see a readout - that is because the voltmeter completes the circuit (and is doing some work for you), and since the circuit is complete, the current is flowing, and that implies a difference of potential.
Wiki User
∙ 13y ago
Wiki User
∙ 12y ago#1: An external energy supply (e.g., battery, wall outlet, generator, etc.) to pump the charge through the internal circuit and establish a potential difference across the circuit.
#2: The external circuit must make up a "closed conducting loop" between the + and - terminal.
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What is circuit conductor?
its is an oject that can be used in a cicuit board, this object should allow an electric current to flow through it
What type of circuit allow electrons to flow constantly?
an open circuit allows electrons to flow constantly
Why should a earthing circuit have low resistance?
The purpose of an earthing (protective) conductor in a residential installation is to allow sufficient fault current to flow, in the event of an earth fault, to enable the operation of the circuit's overcurrent protection device (fuse or circuit breaker), so its resistance must be sufficiently low to allow this to happen.
What happens when a circuit has a gap in it?
When a circuit has a gap in it, everythig stops working because the electricity wont be able to flow around the whole circuit
What is the difference between power and current?
It's the difference between pressure and flow. The pressure is measured in volts, and the current in amps.Current is the flow of electrons.Power=VIcosϕV=voltageI=currentCosϕ=cosine of angle between V and IAnswerCurrent is a drift of electric charge, expressed in amperes. Power is the rate of doing work, expressed in watts (equivalent to a joule per second).
What does a circuit board do?
A circuit board is the pathway for electrical currents to path through to send messages to other connectors. A circuit board consists of capacitors and resistors which allow and resist electric signals.
What do circuit boards do?
A circuit board is the pathway for electrical currents to path through to send messages to other connectors. A circuit board consists of capacitors and resistors which allow and resist electric signals.
What is circuit conductor?
its is an oject that can be used in a cicuit board, this object should allow an electric current to flow through it
A salt bridge is needed in an electrochemical cell to buffer provide ions behave as an electrode or complete the electric circuit?
A salt bridge will allow for the completion of a circuit in an electrochemical cell.
What is the evidence that an electrical circuit is closed?
When that circuit has no breaks. It is an endless path of current flow.
What is an electric circuit what is it used for and where would you find one?
Electric circuits are everywhere. In your car, home, office, your digital watch, your cell phone and on and on. The electric circuit that makes up your cell phone provides the local user interface and connects to a cell tower to allow you to make and receive calls.
Material that does not allow an electric charge to pass trough it?
An insulator will not allow much current to pass. There is a large quantity of insulating materials. There are no perfect insulators or conductors.
Material that does not allow an electric charge to pass through it easily?
That would be an insulator. A few examples include paper, glass or Teflon.
How do fuses protect wires from overheating?
The fuses restrict the amperage (electrical current/flow) of the circuit. The fuse is size according to wire size and load requirements. NEVER put in an over-sized fuse as it will allow to much amperage for the circuit which will cause overheating of the circuit and possible fire.
What circuit does not allow electricity to flow through?
An open circuit.
Materials that do not allow electric changes?
Materials that do not allow electric currents to pass are called insulators.
What is a pathway for a current?
Any path that will allow charge to move. Usually it means a good conductor like copper or other metals.
