Is electric potential difference a scalar quantity?

Statement I : If two source charges produce potentials V_(1) and V_(2) at a point, then the total potential at that point is V_(1)+V_(2) Statement II : Electric potential is a scalar quantity.

Statement I : Though electric potential is scalar, electric potential gradient is a vector quantity. Statement II : Potential gradient is the rate of change of potential with distance.

Write the S.I. unit of electric potential difference?

Across a metallic conductor of non-uniform cross section a constant potential difference is applied.The quantity which remains constant along the conductor is

Is electric current a scalar quantity?

Show that, the unit of the product of electric current and potential difference is identical ot the unit of power .

An electric potential difference will be induced between the ends of the conductor (AB) shown in the figure when the conductor moves along

If a source of electricity having potential difference 10 V sends 5 A current through a circuit for 2 minutes then calculate the amount of work done by the source.