What is the work done in moving a unit positive charge from infinity to that point, at that point?

Solution: The correct answer is Electric potential.

Key Points

• The electric potential is defined as the work done by source is bringing a test charge/source charge/ positive charge from infinity to that point.
• It is a Scalar Quantity.
• Its dimensional formula M¹L²T^-3A^-1
• Its formula is V=kq/r.; where V is potential K is Coulomb's Constant, q is charge and r is the distance between desired position and initial position.

Additional Information CHARGE:

• Charge is the property of matter that causes it to experience a force carried by atomic particles such as electrons and protons.
• It is a scalar quantity.

Current:

• It is the rate of flow of charges in order to complete h circuit
• Its S.I. unit is Ampere.
• It is a scalar quantity.

RESISTANCE

• It is defined as the opposition offered to the flow of current
• It's S. I. unit is Ohm denoted by symbol Ω.
• Its formula is Resistance =voltage current.