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Electrical Circuits What are Circuits? Circuits are a closed path for electricity. Every electrical appliance in your home, whether it is battery operated or you plug it...
Electromagnetic Spectrum The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes –...
The blue glow coming from the water surrounding this nuclear reactor is known as Cerenkov radiation. It is produced because nuclear particles emitted by the reactor are moving faster...
In equation form, this principle can be written as Itotal = I1 + I2 + I3 + ... where Itotal is the total amount of current outside the branches (and in the...
Insulators and Conductors The animation at the left is showing a neutrally charged conductor and its response to charged objects being brought near it. In a...
A sound wave is a pressure disturbance that travels through a medium by means of particle-to-particle interaction. As one particle becomes disturbed, it exerts a force on the next...
Models of the atom It is important to realise that a lot of what we know about the structure of atoms has been developed over a long period of time. This is often how scientific...
Resistance Formula Resistance is the measure of opposition offered by any body to the flow of electric current. A resistor is an electronic component used in the circuit in order to...
Snell"s Law Refraction is the bending of the path of a light wave as it passes across the boundary separating two media. Refraction is caused by the change in...
Cause of Lorentz Force A magnetic field is created by the motion of an electrically charged particle—such as a proton or electron. If that electrical charge is moving through an external...
?What is Temperature Despite our built-in feel for temperature, it remains one of those concepts in science that is difficult to define. It seems that a tutorial page exploring the topic of...