Which of these is not required for current to flow through a conductor? a. source of electrical current b. something to transport the current c. something that causes current to flow through a conductor d. something that has air molecules

The answer to this question would be: D. Something that has air molecules

You don't need air molecule to make electric current flow. But you will need a source of the current, something that can transport it and an electrical potential energy difference to cause the current flow.

D. Something that has air molecules is not required for current to flow through a conductor

Further explanation

Electric current (symbolized by the letter "i) is the amount of charge flowing in the conductor of each unit of time

Can be formulated:

Q = charge (Coulomb)

t = time (seconds)

The international standard unit of electric current is Coulomb/second or Ampere (A).

Electric current is also a ratio between the voltage and the amount of resistance at the conductor.

Can be formulated

V = Voltage (volts)

R = resistance (ohms)

This formula is also known as Ohm's Law, which states that

the amount of current flowing is directly proportional to the voltage and inversely proportional to the resistance.

The direction of the electric current is opposite to the direction of the electron, moving from the positive pole to the negative pole, from the high potential to the low potential

In a simple electrical circuit, electrical current occurs because of:

1. voltage source 2. conductor 3. energy user components such as light bulb

This electrical circuit can occur through a series or parallel

From the above questions we can see the available answer choices:

A. Source of electrical current

Electrical voltage sources can cause potential differences.

The mains voltage can be Direct Current (DC) like a battery or alternating current (AC) like a generator

B. Something to transport the current

Conductors are substances that can conduct electricity. This substance can be a solid, liquid or gas. each substance has a different ability to conduct electricity.

Substances that cannot conduct electricity are called insulators

C. Something that causes current to flow through a conductor

The flow of electricity that occurs in the conductor is due to a difference in potential, moving from high to low potential. the greater the potential difference, the greater the current flowing

D. Something that has air molecules

Something that has air molecules is not related to electric current

Learn more

electric field

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magnetism

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An electric device delivers a current of 5 a to a device.

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Keywords : electric current, potential difference, Source of electrical current

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