Question

1. describe what is resistance and how does it affect the flow of current?

Explanation:

Resistance is a property of a material that opposes the flow of electric current. According to Ohm's Law ($V = IR$, where $V$ is voltage, $I$ is current, and $R$ is resistance), for a given voltage, a higher resistance results in a lower current. So, resistance limits or restricts the amount of current that can flow in a circuit.

Answer:

Resistance is the opposition to the flow of electric current. It affects the current flow such that, according to Ohm's Law ($V = IR$), for a fixed voltage ($V$), an increase in resistance ($R$) causes a decrease in current ($I$), and vice - versa. So, resistance controls the magnitude of the electric current in a circuit.