Refraction and reflection of plane wave by Huygen’s theory
Mr. Ali
Refraction of plane waves using Huygens’s theory Let PP ‘is the surface separating mediums 1 and 2 and V1 and V2 are the time taken to cover the distance between…
Blog
What is magnetic field class 12th
Magnetic field The field around a magnet in which a magnetic needle is subjected to a torque, causing it to rotate and stay in a fixed direction. The direction of…
What is electrical circuits
Electric circuit An electrical circuit is a closed, continuous path through which electric current can flow. In a complete electrical circuit, electricity flows from a power source, such as a…
wheatstone bridge principle
Principle According to this principle, If four resistances are connected in series and represented by the four sides of a parallelogram and one diagonal of the quadrilateral is connected to…
What is Kirchhoff’s Law
Kirchhoff’s law He has two rules. 1. Junction rule or Kirchhoff’s current law (KCL) According to this rule, the value of the current coming at a junction is equal to…
Specific resistance or resistivity
It is represented by ρ. When electric current is impressed in conductor, then ratio of current density i in a conductor and intensity of the electric field is called the…