Question

A current of 1.5A flows through a conductor for 2.0s. What amount of charge passes through the conductor ?

Answer 1

A stream of charged particles, such as electrons or ions, flowing through an electrical conductor or space is known as an electric current. It's the net rate of electric charge flow through a surface or into a control container that's monitored. Charge carriers are the moving particles, and depending on the conductor, they might be one of numerous sorts of particles. We use this concept here to solve the problem here.

Formula used
${\text{Current(I) = }}\frac{{{\text{Charge(q)}}}}{{{\text{time(t)}}}}$

Complete step by step solution:
Electrons travelling through a wire are commonly used as charge carriers in electric circuits. They can be electrons or holes in semiconductors. Ions carry charge in an electrolyte, whereas ions and electrons carry charge in plasma, an ionised gas. The ampere, or amp, is the SI unit of electric current, which is defined as the passage of electric charge over a surface at a rate of one coulomb per second. Charge carriers are the moving charged particles that make up an electric current in a conductive substance. An equivalent flow of negative charges in the opposite direction produces the same electric current and has the same impact on a circuit as a flow of positive charges in the same direction.
Given: current = 1.5A, time = 2s,
We need to find the charge
${\text{Current(I) = }}\frac{{{\text{Charge(q)}}}}{{{\text{time(t)}}}}$
Charge = current x time
Charge = 1.5 x 2
$\Rightarrow {\text{Charge}} = 3C$

Note: Remember that we use the charge current relation and not ohm's law. When matter is put in an electromagnetic field, it acquires an electric charge, which causes it to experience a force. Positive and negative charges are the two kinds of electric charge (commonly carried by protons and electrons respectively). Charges that are similar repel each other, whereas charges that are dissimilar attract each other. The term "neutral" refers to an item that has no net charge. Classical electrodynamics is the name given to an early understanding of how charged substances interact, and it is still correct for situations that do not need consideration of quantum phenomena.