Recent content by f2009049

When we connect a battery across a loop of wire having some finite resistance there comes into picture an electric field E which is empirically given by J/sigma.(sigma==>conductivity). but how can there exist an electric field inside a conductor??We had already learned that electric conductor...

I asked my friend : This is what he says: " Mathematically , we are arriving at a result which makes us perceive that for any disk of finite radius having uniform charge distribution,as we approach the centre of the ring;it is same as we are approaching infinity.It is the radius x/r which...

Regarding electric field at the center of a uniformly charged disc? The electric filed at a distance x from the center of a uniformly charged disc of radius R,along the axis passing through the center is given by E = sigma/2e(1-x/rt(x^2+R^2)) where sigma is surface charge density and e is...