Question

Define current and p.D. And give the relationship between them

Answer 1

Answer:

Electric current:

An electric current is a flow of particles (electrons) flowing through wires and components. It is the rate of flow of charge. If the electric charge flows through a conductor, we say that there is an electric current in the conductor. In the circuits using metallic wires, electrons constitute a flow of charges.

Potential difference:

It is the difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other

Relationship b/w pd and electric current:

The potential difference (voltage) across an ideal conductor is proportional to the current through it.

The constant of proportionality is called the "resistance", R.

Ohm's Law is given by:

V = I R

where V is the potential difference between two points which include a resistance R. I is the current flowing through the resistance.

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