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Because the current must always travel in a complete loop, going through the circuit and returning to the supply. A current can't travel along only one wire so no power would get to the circuit unless it has two wires.

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The ability of an object to transfer electric current?

The ability of an object to transfer electric current is determined by its electrical conductivity. Materials with high electrical conductivity, such as metals, allow electric current to flow easily through them, while insulating materials have low electrical conductivity and inhibit the flow of current. Conductors like copper and silver are widely used for their high electrical conductivity.


Can electric current pass through alcohol Explain?

Yes, alcohol is a liquid and has delocalised electrons which can carry the electrical current. Edited: Seriously? Unless there are impurities in the alcohol that are electrolytes, alcohol will NOT conduct an electric current. Alcohols are considered as NON ELECTROLYTES, as they do not ionize and thus will not conduct a current. (Dr.J.)


What kind of substances can electric current can flow through?

Electric current can flow through conductive materials such as metals (copper, silver, aluminum), electrolytes (saltwater, acids), and certain semiconductors (silicon, germanium). Insulating materials, like rubber and plastic, do not allow electric current to flow.


If a copper wire in a working electric circuit is replaced by a piece of rubber tubing will there be a current in the circuit?

No, a rubber tubing is an insulator and will not allow the flow of electric current like a conductor such as copper wire would. Therefore, if the copper wire is replaced by rubber tubing, the circuit will be broken and no current will flow.


Unit of electric resistance?

The unit of electric resistance is the ohm, represented by the symbol Ω. It measures the opposition that a material has to the flow of electric current through it. Smaller resistances allow for a larger current flow, while larger resistances restrict the current flow.

Related Questions

What is a single route for electrical current called?

A single route for electrical current is called a branch circuit.


Is a conductor necessary for electricity to flow?

Yes, a conductor is necessary for electricity to flow. Conductors are materials that allow the flow of electric current, while insulators do not allow the flow of electric current.


What is a liquid or solid substance or mixture that does not allow an electric current?

an insulator


What are materials that allow electric current to move through them?

Materials that allow electric current to move through them are called conductors. Common examples include metals such as copper, silver, and aluminum. Conductors have low resistance to the flow of electric current due to their ability to easily transfer electrons.


What material allows electric current to pass through?

Electric current flows in conducting materials such as metals. The best conductor of electric current is silver, followed closely by copper and then aluminium.


Is a resistor considered a conductor?

No, a resistor is not considered a conductor. Resistors are components that impede the flow of electric current, while conductors allow electric current to flow easily.


What Allows electric current to flow though them to devises and components?

Switches either allow the current to flow or turn it off


Is this sentence incorrect any material that allows an electric current to pass through is called a battery?

Incorrect. Any material that allow electric current to pass through it is a conductor.


What is the reason for a vertebral column to be a collection of bones instead of a single bone?

A Single bone would not allow flexibility.


Can a resistance be used in the circuit instead of diode?

No. A resister is not a replacement component for a diode. A resister is passive and allows current to flow through in in both directions. A diode is a single semiconductor junction that only allow current to flow in one direction.


What materials does NOT allow a current to pass through it?

Some materials that do not allow a current to pass through them include rubber, glass, and plastic. These materials are classified as insulators because they have high resistance to the flow of electric current.


Which type of materials allow the charges of an electric current to move freely through them?

Conductors, such as metals.