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Ciencias Naturais (690)
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"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 ...
"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 ...
Video Física
"Rotational inertia measures how much an object resists changing rotation. In linear motion, according to Newton's Second Law, we use mass to gauge an object's resistance to change but in rotational m ...
Video Física
"Elastic modulus is a quantitative measure of how much something wants to return to its original shape and size. Generally it can be thought of as stress over strain. We calculate the elastic modulus ...
"It is important to understand the difference between rotations and revolutions. When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an ob ...
Video Física
"Double slit experiment, also known as the Young's experiment, was conduct by Thomas Young in 1803. This experiment confirms the wave nature of light, which is wave behaves as a wave, not a particle. ...
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