Magnetic effect of electric current

Short description on Magnetic effect (class IX)
The magnetic effect of electric current was discovered by Hans Christian Oersted . The magnetic field strength (B) is determined by the strength of the current The magnetic strength decreases as we move away from the conductor The magnetic field lines (imaginary) created by a long conductors is in the form a concentric circle with the axis of conductor at the centre

The direction of magnetic field in a current carrying wire can be determined by Right Hand Thumb rule or Cork Screw rule. 

SI unit of Magnetic field is Tesla 
other unit is Gauss.

Comments

Post a Comment

Popular posts from this blog

Hyperbolic Paraboloid

Image
Graphs and Level curves of functions of Two variables Definitions The set of points (x,y) in the plane where a function f (x,y) has a constant value f(x,y)=c is called a level curve of f The set of all points (x,y,f (x,y)) in space, for (x,y) in the domain of f, is called the graph of f The graph of f is called the surface z=f (x,y) The equation of the following hyperbolic paraboloid is `z=50+x^2-y^2`
Read more

Renewable Energy-Solar

The conventional energy sources are depleting at an exponential  rate .The energy crisis is a major concern for the nation around. The coal will last long only for 100 years or less petroleum resource will be exhausted nearly in 50 years time. The oil producing countries it self is moving towards the introduction of renewable energy sources , major among them is Solar energy. The energy production in the sun is  by the  nuclear fusion , hydrogen in the core of sun is converting in to heavier nucleus helium during this process the nuclear binding energy is liberating in the form useful energy . The plants can absorb the visible light and utilize it  for photosynthesis . The use of solar energy by natural means is coming only 1 to 2 % , rest of the energy is un utilized The solar energy capturing technique (Photo Voltaic) was introduced by Charles Fritts   in the year 1883 The solar energy can be  utilized in the following ways 1.  ...
Read more