## Magnetic Field around a Wire

You can drag the compass. The magnetic field is the area surrounding a magnet in which the magnetic force exists. The magnetic field is also formed around the conductor through which the current flows. This is electromagnetism. The direction of … more

## Ohm’s Law

Ohm’s Law When you connect the light bulb and the battery with a wire, the bulb lights up. This is because free electrons with negative charges (-) move along the wire, and this flow of charges is called current. It … more

## Electric Potential 2

Battery and Load In an electrical circuit, the battery maintains a voltage difference to allow current to flow through the circuit. In an electric circuit, the place where energy is consumed is called a load. Generally, in school labs, the … more

## Electric Potential

Battery and Load In an electrical circuit, the battery maintains a voltage difference to allow current to flow through the circuit. In an electric circuit, the place where energy is consumed is called a load. Generally, in school labs, the … more

## Direct Current(DC) and Alternating Current(AC)

Direct Current, DC In direct current (DC), current flows in only one direction of a conductor. For example, since a battery’s terminals always maintain a constant pole, current flows in only one direction in an electrical circuit. Most of the … more