Is electric force a contact force?

Answer 1

Subatomic particles - as well as atoms and molecules which are made up of such particles - have a property called "electric charge". This charge can be positive, negative, or neutral (no net charge). There is a force among such charges; this force is attractive for opposite charges, and repulsive for like charges. In other words, a positive charge and a negative charge attract one another; while two positive charges, or two negative charges, push away from one another.
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Answer 2

Electricity is like an avalanche. The electrons of the conductive material jumps from one atom to the next pushing the electron from that atom on to the next one. One of the four fundamental forces, the electromagnetic force manifests itself through the forces between charges (Coulomb's Law) and the magnetic force, both of which are summarized in the Lorentz force law. Fundamentally, both magnetic and electric forces are manifestations of an exchange force involving the exchange of photons. If you're asking what it's measured in, the answer is "Volts".

Answer 3

Potential Difference causes electrons to flow, it is a difference in charge of the particles from one location to the next. Like two masses of air with different densities, the two masses mix to find an equilibrium pressure. Electrons seek to do the same thing, whether around a nucleus or flowing through a wire, they want to travel to find a neutral charge state. They flow in the direction of positive charge to negative charge.

Answer 4

No. Electric force is not a contact force.

Answer 5

This force is the electrical potential.

Answer 6

This is an electromagnetic force of repulsion.

Answer 7

force between charged particles.