The below rules govern the direction of the magnetic field round the current-carrying conductors. 1. Maxwell: If a right handed cork […]
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An electromagnetic field is that field that results from the interaction of the electric and magnetic fields. When a current carrying […]
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The Concept of Electromagnetic Waves
Unlike mechanical waves, electromagnetic waves are waves that require no material medium for propagation. Thus, they can propagate through a […]
This is defined as the electric force experienced per unit charge. It is a vector quantity and is expressed in […]
Like charges repel and unlike charges attract. Based on this, Coulomb’s law of electrostatic force came into being. The law […]
The wheatstone bridge is one of the most accurate methods of measuring resistance. It consists of four resistors of resistance […]
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Resistivity and Conductivity
Experiment shows that the resistance of a metallic conductor is directly proportional to the length of the wire and inversely […]
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Shunts and Multipliers
1. Shunt: A shunt is a low resistance usually used to convert a galvanometer to an ammeter. It is usually connected […]
Electric circuit Presentation Click on the slides: https://www.slideshare.net/slideshow/embed_code/key/LPNy5zEs80BhGOSeries and Parallel Circuits from Nurul Fadhilah (a) Cell Arrangement: (i) Cells in Series: The total emf […]
Continuous charges are also called current (or moving electrons). They are produced by a device called ‘a cell’. Types of […]