Resistnace
Essay title: Resistnace
What is resistance?
Is anything in a circuit that slows the flow down of electrons (the current)
Planning
Introduction
Resistance is anything in the circuit that slows down the current (The flow of electrons.) If you increase the resistance then less current will flow. A variable resistor alters the current flowing through the circuit depending on what you alter it to.
– ve +ve
Voltage supply provides the push
Current Flows
Resistance opposes the flow
Revision Guide for GCSE Physics.
This diagram shows the affect of resistance.
The above equation is ohms law. It is used to measure, current, voltage and resistance.
It is possible to use the following circuit to measure the resistance of a wire.
It is then