The **potential difference** between two points is the **energy transferred** per unit **charge**. An electrical circuit is an energy transformation device.

## What is Energy transformed?

The **potential difference** between two points is the **energy** transferred per unit **charge**. An electrical circuit is an energy transformation device. **Energy** is provided to the circuit by an electrochemical cell, battery, generator or another electrical energy source. **Energy** is delivered by the circuit. The rate at which this energy transformation takes place has a great relevance to the design of an electrical circuit for useful functions.

## Energy transformed equation

To calculate **Energy transformed** we use this equation.

Energy = power x time

$ {\mathit E \, \text = \mathit P \mathit t}$

Energy = charge flow x potential difference

$ {\mathit E \, \text = \mathit Q \mathit V}$

## Energy transformed demo

In this tutorial you will learn how to calculate the **energy transformed** through an electrical circuit.

## Chilled practice question

Calculate the** energy transformed** if a circuit is supplied with 6 **V** and 32 **C** of **charge** flows.

## Frozen practice question

Calculate the **energy transformed** when a current of 4 **A** flows with a **p.d** of 230 **V** for 18 **s**.

## Science in context

The **potential difference** between two points is the **energy transferred **per unit **charge**

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