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Video Física
"Electromagnetic waves are waves that take place in electromagnetic fields. When looking at electromagnetic waves in a vacuum, change in magnetic flux generate electric field and change in electric f ...
"The electromagnetic spectrum depicts different frequencies of electromagnetic radiations shown from blue to red. On the electromagnetic spectrum, wavelength is shown to be increasing to the right and ...
"Electromagnetic induction is the concept of changing in one current induces changes in another current. This results in the production of voltage through magnetic field described in Ampere's Law. The ...
Video Física
"Electric potential is the ratio of electric potential energy and test charge. The concept of test charge is explained in electric fields. Positive charges prefer high electric potential while negat ...
Hipervinculo Física
"Opposite electric charges attract each other while like electric charges repel each other. This force of attraction and repulsion is called electric forces. Coulombs law states that force of attracti ...
Hipervinculo Física
"An electric field is the ratio between the force felt by a small charge and that small charge. The small charge is called the test charge. This force can be found using Coulomb's law. Electric field ...
"The interactions between electric currents and magnetic fields create forces. The magnetic force on a current in a magnetic field = current x displacement across the magnetic field. This force can be ...
Video Física
"Electric current is the rate of charge flow as charge moves through a conductor. Current is conventionally taken to be in the direction of positive charge flow. Current is caused by differences in ...
Video Física
"Electric circuits are one or more loops of wire which allow current to flow all the way around, usually driven by a battery which maintains a potential difference to keep current flowing. Light bulbs ...
Video Física
"The speed at which an object rotates or revolves is called rotational speed. Unlike linear speed, it is defined by how many rotations an object makes in a period of time. The formula for rotational s ...
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