Is electrostatic potential vector or scalar?

Define gravitational potential. Give its unit. Is gravitational potential vector or scalar ?

Define electrostatic potential.

Shows that how the electrostatic potential varies with r for a point charge.

A 900 pF capacitor is charged by 50 V battery. Find the electrostatic potential energy of this capacitor. (2) Now this capacitor is disconnected from the battery and connect to another equivalent capacitor, then what is the total electrostatic energy stored by the system respectively ?

When a proton moves opposite to electric field, work done on it by electric field is ..... . and electrostatic potential energy of proton ......,

In the previous question assume that the electrostatic potential is zero at an infinite distance from the spherical shell. The electrostatic potential at a distance R (a lt R lt b) from the centre of the shell is where (K=1/(4pi epsilon_(0)))

Is power a vector or scalar quantity ?

Is viscosity a vector or a scalar ?

Explain electrostatic potential energy in electric field due to an artangement of electric charge.