Ways to charge conductors

By conduction(contact) Procedure: A metal sphere with an excess of negative charge is brought near to a neutral object. Upon contact, electron move from the sphere to the object and spread about uniformly. The metal sphere now has less excess negative charge and the object now has a negative charge. By induction Procedure: When a positively charged rod is brought …

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Field and charges

A field is the region of space in which a body experiences a force as a result of the presence of some other body. An electric field is a region of space in which a force acts on an object due to it’s electrical charge and the presence of some source that creates the field. Conservation of charges: Charges cannot …

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Electric fields

This topic covers “Electric Fields” of A Level Physics. (Equivalent to Advanced Placement) If this is too advanced for you, you can try the more basic version here. Sub-topics: Field And Charges Ways To Charge Conductors  Coulomb’s Law  Drawing Field Lines  Acceleration Due To Electric Field  Electric Potential Equipotential Line Electric Potential Energy Questions: (With Worked Solutions) Set 1

Special Relativity

Sub-Topics: Inertial Frames and Non-inertial Frames Galilean Transformation Equation Einstein’s Principle of Relativity  Simultaneity and relativity of time  Time Dilation  The twin paradox  Length Contraction Lorentz Transformation Confirmation of TD, LC and simultaneity using Lorentz Transformation Relativistic Addition Of Velocities Relativistic Momentum and Energy Back To H3 Physics

Inertial Frames and Non-inertial Frames

Inertia frames of reference are those reference frames in which Newton’s laws are valid. They are non-accelerating frames (constant velocity frames). If a person performed an experiment in a train, he will not observe any difference between the readings obtained when the train is moving at constant velocity or when the train is at rest. Consider an airplane in flight, …

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Rolling Uphill Illusion

I came across this particular video on youtube. The video was suggesting that there are places where there are illusions of objects defying gravity. I was so interested by this phenomenon that i went and googled for the explanation. I hope you enjoyed this as much as i did. Back To Interesting Phenomenons   The following explanation is extracted from: …

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Tea Leaf Effect

Q:  Why tea leaves stay in the centre of a cup of swirling fluid. Explanation 1: Coriolis force, which drives atmospheric circulation around regions of high and low pressure, is a fine example of a fictitious force. But it is not the explanation for the beautiful tea leaf effect. That honor goes to pressure. As fluid swirls in a container, …

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