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Why must a circuit be closed in order for a current to flow?
A circuit must be closed in order for a current to flow because it helps keep a current flow pass. When the switch is closed on a circuit there is a constant flow. When the switches open the flow is disturbed around the circuit.
Must charge be present at a location for there to be electric potential?
No charges have to be present.
What must occur to electric current?
transfer/movement of electrons
What relation between electric current and drift velocity?
The relation between electric current and drift velocity is that they both happen to involve electrons moving opposite of the electric field. The electric field must also have a conductor.
Which of these must be used to create an electromagnet?
coils of wire, iron, and electric current
Is electric current and current the same thing?
Not really. You can compare them with the analogy of water flowing through a pipe. For water to flow, there must be a pressure difference across the ends of the pipe. An electric current is a movement of electric charges along a conductor. For those charges to move, there must be a voltage (more accurately, a 'potential difference') across the ends of the conductor. So a potential difference is required to cause current to flow.
If a material conducts electricity easily what will it have?
It must have a low resistance to the flow of electric current.
How can the flow of electric current be started and stopped?
In order to change an electric current, you must first change the conductor, doing so will change the flow of atoms which will change the electrical discharge.
Is an unbroken path through which an electric current can flow?
The term is "circuit" (from the same root as circle) An electric circuit must be uninterrupted for the current to flow. (This is why circuit-breakers are also called circuit-interruptors.)
How can electric current change?
In order to change an electric current, you must first change the conductor, doing so will change the flow of atoms which will change the electrical discharge.
What must occur before the current flows through a circuit?
As current is the rate of flow of electric chargesAs I=Q/tso,there must be free electrons for the flow of electric current in a circuit.Then when voltage is applied at the terminals of circuit the free electrons acquire an average velocity called as drift velocity in the opposite direction to that of electric field (-E).Now the free electrons modify there random motion and a steady current begin to flow in a circuit.
How is chronaxy used in a sentence?
Chronaxy is the shortest time an electric current must flow in order to excite a tissue.
The pathway taken by an electric current is a?
The term is "circuit" (from the same root as circle) An electric circuit must be uninterrupted for the current to flow. (This is why circuit-breakers are also called circuit-interruptors.)
What is present when currents flow through a wire?
There must be a Electron flow in that wire. Or Energy in the form of Electric will flow in that wire. Influences that are present are Voltage, Ohms, and Amperes (amps)
In order to conduct an electric current a substance must contain a what?
It should contain some IONS, or charged particles.
Why is there no flow of electric current between 2 objects of equal resistance?
I am not sure how the two objects of equal resistance are supposed to be connected. But for a current to flow, for example across a resistor, there must be a voltage difference between the terminals of this resistor.
How can copper can relate with electric because copper is 2 plus and electric is negative and positive?
Electric current is always the flow of electrons ... negative charges. The only requirement for a substance to be a good conductor of electric current is that it must have electrons on its outer layer that are relatively easy to tear away from the atom.
