Electrostatics

Understanding static electricity, electric fields, and electric potential

Topics

What is an electric field?

An electric field is a region around an electric charge where electric forces act on other charges. It represents the force per unit charge and describes how charges influence each other through space, even without direct contact.

What is electricity?

Electricity is the flow of electric charge, typically electrons moving through a conductor. It involves electric current (flowing charge), voltage (electrical pressure), and can power devices and create magnetic fields.

What is static electricity?

Static electricity is the buildup of electric charge on an object's surface. It occurs when electrons transfer between objects through contact or friction, creating an imbalance of charge that can cause sparks or attraction.

What is voltage?

Voltage is the electrical potential difference between two points, representing the 'pressure' that drives electric current. It's measured in volts and determines how strongly charge is pushed through a circuit.

Why do we get electric shocks?

We get electric shocks when electric charge suddenly flows through our body. This can happen from static electricity (charge buildup discharging) or from contact with live electrical circuits, causing a painful sensation.