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For a current to flow there must be a voltage, and a conductor through which the current can pass.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThey are
1: Magnetic Field
2: Current carrying Conductor
3: Motion
Motion can be related with field motion or magnetic substance (that is carrying current) relative to each other.
Wiki User
∙ 13y agoIT will need a battery, a light or buzzer, At least two clip-on wires And a battery holder. Make sure the battery is charged and secure in the holder. Clip wires on to the holder, one on each metal holder. and do the same for the lamp. It should light up!
Wiki User
∙ 11y agoA closed circut
A source of electrical energy
Wiki User
∙ 12y ago-- a potential difference (voltage) between two points
-- a conductor between the two points
Wiki User
∙ 7y agoThere has to be a voltage, and there has to be a conducting path.
Wiki User
∙ 6y agoA source of voltage and continuity.
Anonymous
voltage and conductor
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What is the direction of current due to flow of electrons if it is not conventional current?
Electron flow is from negative to positive. Conventional current flow is from positive to negative.
What two things are needed to make a current flow in a circuit?
For the circuit to be connected all the way round because if there are breaks in the circuit the electricity will not flow back round. and number 2 a battery or a power source because without power where is the electricity coming from to be honest. Hope it helped. Thanks. xx
For an eletric current to flow the only thing needed is for two objects to have a difference in charge?
Yes. However, depending on the size and shape of the objects, the amount of current that flows may be small and/or flow for only a brief time until the charges are neutralized. But - if the objects are connected to an electrical power source such as a battery or a wall plug, the charges are continuously supplied and the current continues to flow.
What is the flow of electrons is called?
current
What is electric current flow?
Answerits lightning, for a more simple answer......electric current flow is the movement of charges. Most often, however, we consider electric current flow to be moving electrons, or electron current flow.We most often use the term electric current flow to refer to the moving electrons, the flow of which is measured in amperes.Earlier scientists, before the discovery of electron, do believe that current flows right from positive terminal to the negative. This is known as conventional current flow.So electron flow is always opposite the direction of conventional current.
What condition are necessary for a current to be present in a circuit?
The only two things needed for current flow are electromotive force or voltage and a conductor. The amount of current flow will depend on the "Resistance" in the circuit.
What are to things needed in order for current to flow in a circuit?
voltage and ground
What device is needed for current to flow in an electric circuit?
Too vague of a question. As long as it is a closed circuit it will flow.
What is needed for electricity to flow?
current - caused by protons (+) and neutrons (-) flowing around a circuit
What is necessary in order to push current through a conductor?
A difference of potential (which is measured in Volts) is needed to make current flow.
Are wires and a light bulb needed to make current flow?
No, not at all, current can flow between any two opposite poles. Usually a power source and wire are used, but current flows through lightning and such.
What is voltage and current?
Current is defined as the rate of flow of charge through a body. ie, I = Q / T Voltage is the amount of Pressure needed to make the charge flow through the body. ie, V = J / Q A; current flow is not related to time if the EMF is constant the current flow will be constant. A1: current is electrons flow caused by the presence of EMF. A2: voltage is the EMF force necessary to make current or electrons to flow.
Using the body of the car as a return path for current flow?
reduces the amount of wires needed.
What conditions are necessary for magnetic field to produce a force on a wire?
A current has to flow in the circuit to induce a force on the circuit
What are the advantages of co-current flow?
A Counter-current flow has more advantages as comapared to a co-current flow.
What is a current flow restrictor?
A current flow restrictor is a diode.
How many things are needed to create a current?
A difference of potential (voltage) and a conductor connected to the voltage source will cause current flow. Not that you'd want to "short out" a voltage source with a piece of wire, but just the source of voltage and the conductor would permit current to flow. If you took a piece of wire and touched it to the terminals of a good battery, current would flow. It takes just those two things to create a current.
