Question

What are some of the useful properties of current electricity?

Answer 1

In simple words, current electricity is the flow of electrons through a conductor (wires). Following are the few properties of the current Electricity:

1. Potential Difference (also called as Voltage):
It is the difference in Electric potential between two points. Those two points might be the positive and the negative ends of a battery. Higher the difference, greater will be the energy (potential) of the electrons running through a wire. It is represented by V, and its unit is Volts.

2. Electric Current
It represents the number of electrons (charges) passing by a point per second. Its unit is Ampere, and it is represented by A.

3. Resistance
It represents the opposition that a substance offers to the flow of electric current. Its unit is Ohm, and it is represented by Ω.

Answer 2

By definition we have to:

The electric current is the flow of electric charge due to the movement (usually of electrons) that a material travels.

Some properties are:

1) Electric conduction: The conductive materials have a large amount of free electrons, therefore, the passage of electricity is possible.

2) The current inside a circuit is directly proportional to the voltage and inversely proportional to the resistance of the circuit. This is what is known as ohm's law:

$I =\frac{V}{R}$

3) The current can be continuous or alternate.

Alternating current is the electric current in which the magnitude and direction vary cyclically.

The direct current is the flow of electric charges that does not change direction with time.