Question

Define electric potential. State its practical unit and define it.

Answer 1

Step 1: Electric Potential Formula,

$V=k\frac{q}{r}$

$V=$electric potential

$k=$Coulomb constant

$q=$charge

$r=$distance of separation between the test charge and source charge

Step 2: Electric Potential,

1. The amount of work required to transport a unit charge from a reference point to a specified place in the presence of an electric field.
2. The reference point is often Earth, but any location outside the influence of the electric field charge can be utilized as the reference point.

The practical unit of electric potential,

Electric potential is represented in units of$Joulespercoulomb$(i.e., $volts$) in the International System of Units (SI), and potential energy differences are measured with a voltmeter.

$Joulespercoulomb$

1. A $joule$is a unit of work done, while the coulomb is a unit of charge.
2. The potential is defined as the ratio of work done to charge, and the potential difference is measured in $volts$.
3. One$Joulespercoulomb$ equals one unit of potential difference.
4. As a result, it will be equivalent to one volt.