The volt, as a unit of measurement, is equal to how many joules per coulomb?

The volt, as a unit of measurement, is equal to how many joules per coulomb?

• A. One
• B. Ten
• C. A hundred
• D. Five

Answer: (A)

The volt is defined as the amount of electric potential difference that will cause one joule of energy to be transferred per coulomb of charge that passes through an electric circuit. This relationship can be mathematically expressed as: 1 volt = 1 joule/coulomb. This definition is fundamental in understanding electric potential and energy in circuits. It indicates that when a charge of one coulomb moves through a potential difference of one volt, it gains one joule of energy. This basic concept is vital for further studies in electromagnetism and electrical engineering, where understanding how voltage relates to energy transfer and current is crucial. In this context, other numerical options do not reflect the correct relationship defined by the volt and the joule, as they would imply either an incorrect amount of energy transfer or charge movement.

The volt is defined as the amount of electric potential difference that will cause one joule of energy to be transferred per coulomb of charge that passes through an electric circuit. This relationship can be mathematically expressed as:

1 volt = 1 joule/coulomb.

This definition is fundamental in understanding electric potential and energy in circuits. It indicates that when a charge of one coulomb moves through a potential difference of one volt, it gains one joule of energy. This basic concept is vital for further studies in electromagnetism and electrical engineering, where understanding how voltage relates to energy transfer and current is crucial.

In this context, other numerical options do not reflect the correct relationship defined by the volt and the joule, as they would imply either an incorrect amount of energy transfer or charge movement.