Circuits consisting of just one battery and a resistor are very easy to study, but they are not often used in practical applications. We typically see circuits where there are more than two components…
Electricity is used daily to operate your cell phones, power transports, and keep your home appliances such as the refrigerator running. If you are attending physics tuition, you would know that the concept of…
Electromagnetism is a branch of study concerned with the interactions between electrically charged particles, namely, due to electromagnetic force. Electromagnetic force is carried along electric fields and magnetic fields. For example, when an electric…
When you rub a balloon on your head, electrons are moved from your hair to the surface of the balloon. The electrons will stick to the side of the balloon where it was rubbed…
Polarisation is a phenomenon caused due to the wave nature of electromagnetic radiation. It is an important property of light that affects even those optical systems that do not specifically measure it. The polarisation…
What does a guitar, swing, or a rocking chair have in common? They all oscillate – in a way, they move back and forth between two points. Oscillations can create waves. For example, a…
In most cases in physics, when people discuss about the theory of superposition, they are talking about waves. Example of waves includes light, sound, water, and earthquake waves. We all know that two objects…
Electricity and magnetism used to be considered two different topics until the 19th century. Today, electromagnetism is a bourgeoning field in physics that studies electromagnetic forces that occur between electrically charged particles. Electromagnets consist…
Many power plants and engines operate by converting heat energy to get work done. This is because a heated gas can do work (e.g. by pushing) on mechanical turbines or pistons, which causes them…
