Which of the following represents voltage?

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workdone current × time

workdone × time current

Workdone

×

Charge

Workdone

×

Charge

×

Time

answer is A.

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Detailed Solution

Concept: Charges subjected to electric force experience force. Apply Coulomb's law. Charge must be converted into current. Both amounts are distinct. The SI unit of current is the ampere, while the SI unit of charge is the coulomb.
Voltage is the word given to electric potential. SI The joule/coulomb is the unit of electric potential.
The amount of effort required to move a unit positive charge from infinity to that location in the electric field is described as electric potential at that place.
If

is the reference point then work done to bring the charge

from a reference point to

point and it is given by.

We know that, voltage is given by
Voltage =electric field *distance between two points.

By Coulomb's law, Force is given by

Now put above value F in equation (2) , we get
Question Image

We know that current is equal to charge per unit time.
Current

Charge

current * time
Put above value in equation (1)

Hence, the correct option is 1.

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