Electricity

Physics

Electricity

Objective: The aim of the exercise is to gain experience of working with simple electrical circuits understanding and analysing all the functions and the apparatus to make this happen.

Theoretical Framework:

Electricity is the flow of electrical power or charge. It is both a basic part of nature and one of our most widely used forms of energy.

Electricity is actually a secondary energy source, also referred to as an energy carrier. That means that we get electricity from the conversion of other sources of energy, such as coal, nuclear, or solar energy. These are called primary sources. The energy sources we use to make electricity can be renewable or non-renewable, but electricity itself is neither renewable or nonrenewable.

Electricity Use Has Dramatically Changed Our Daily Lives

Before electricity became available over 100 years ago, houses were lit with kerosene lamps, food was cooled in iceboxes, and rooms were warmed by wood-burning or coal-burning stoves.

Many scientists and inventors have worked to decipher the principles of electricity since the 1600s. Some notable accomplishments were made by Benjamin Franklin, Thomas Edison, and Nikola Tesla.

Apparatus:

Voltage:Is the electromotive force or the electrical potential difference between two points in a circuit expressed in volts. The easier way to understand voltage or volts is to use a water analogy. Is measure by the voltmeter.

Current: Is a flow of electrical charge which is measure by the Ammeter that is connected in series.

Resistor: Is an electronic component that is designed to offer a desired amount of resistance to the flow of current.

Power supply:Is a hardware component that supplies power to an electrical device. It receives power from an electrical outlet and converts the current. AC(alternating current) to DC (direct current), which is what the computer requires.

Voltmeter:Is an instrument used for measuring electrical potential difference between two points in an electric circuit.

Ammeter:Is an instrument used for measuring either direct or alternating electric current.

Results

At 4V

At 5V

At 6V

At 7V

At 8V

Conclusion:

After making this exercise,I was able to understand how to evaluate risks in practical work and to measure the current-voltage characteristics of a metal resistor.Also to describe how ammeters and voltmeters are connected in circuits and the definition of those.

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