A Resistor restricts the flow of current.

## What is a resistor in a circuit for dummies?

A small component that provides a specific amount of resistance in an electronic circuit is called a Resistor. Resistive elements are an essential part of nearly every electronic circuit.

## Why is a resistor needed in a circuit?

The materials used to make the Resistors make it difficult for the electrical charges to flow through a circuit.

## How does a resistor affect a circuit?

The current before and after the narrow pipe is the same.

## Does resistor reduce voltage or current?

“R” is the constant of proportionality and tells how much it varies. Ohm’s law states that if a current is flowing through a resistor, there will be a voltage dropped across it.