protons,neutrons and electrons
Three things you need to make an electromagnetic are a magnetic field, an electric current, and a conductor or coil of wire. When an electric current flows through the conductor, a magnetic field is created around it, resulting in an electromagnetic effect.
To have electric current, you need a source of electric potential difference (voltage), a closed circuit that allows the flow of charges, and a conductive material through which the electric charges can move.
To have an electric current, you need a source of voltage (such as a battery or power supply), a complete electrical circuit (includes wires and components), and a conductive material (such as copper wire) for electrons to flow through.
To make an electromagnet, you need a magnetic core (such as iron), an insulated wire to create a coil around the core, and a source of electric current to flow through the wire and create a magnetic field.
A conducter
Any electric circuit need to be equipped with electric fuses to protect the electric appliances or any electric/electronic equipment from damage due to unexpected electric current sudden or transient increase.
To have an electrical current, you need a source of voltage (e.g., battery), a complete circuit (including conductive material), and a load (device that uses the electricity).
you need an electrical supply and a load. nice and simple.
the three things that need to be cleaned from water are chemicals,germs
A magnetic compass can detect current, butyou'll need an Ammeter to measure it.A galvanometer can detect current ~ butyou'll need an Ammeter to measure it.
To create a continuous path for electric current, you need a closed circuit that includes a power source (such as a battery or generator), conductive materials for the current to flow through (such as wires), and a load (such as a light bulb or motor) to utilize the electrical energy. When these components are connected in a loop, the electric current can flow continuously.
When you turn on a computer or a stove or a washing machine you are turning on things that use electricity and it transfers from electric to light or heat