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2007-07-19 21:31:49 · 5 answers · asked by jaswinder s 1 in Science & Mathematics Physics

5 answers

Because the electrons within the conductor are free to move around and can thus fully absorb all the energy from the electromagnetic wave

2007-07-19 21:40:49 · answer #1 · answered by Steve B 7 · 1 2

Actually, the field lines do pass through conductor and also for infinitesimally small instant. But it is said that they don't. the reason is that--
The field lines when start to pass through a conductor, a force acts on the electrons. The electrons move and get accumulated against the direction of the original field. That means if the field lines are going from left to right across the conductor, then electrons will get accumulated near the left side of the conductor and +ve hole or + charges are created at the right extreme. Now this charge separation takes place( in that small instant of time) until the original field that passed through the conductor is exactly cancelled by the new opposite field created due to this charge separation. Hence there is no effect due to the external field.
Hence we say that external field lines do not pass through the conductor.

2007-07-19 22:28:37 · answer #2 · answered by mmsabde 1 · 3 0

The electric field lines cannot pass through a conductor because conducts have a lot of free electrons which automatically reconfigure themselves to cancel out any electric field. Insulators can somewhat try to cancel out an electric field but they dont have free electrons which can reconfigure themselves.

2016-05-18 01:14:36 · answer #3 · answered by jeanna 3 · 0 0

it may be accounted due to skin effect of electricity
also
using gauss theorem
Integral(E.dS)=Q/Epsilon
Epsilon is the permittence of electricity which is infinitely large for metals
E is the electric field
Integrating it
E*4*pi*r^2=Q/Epsilon
Q/Epsilon=0(Since epsilon is an infinity)
there for E=0

2007-07-19 21:56:18 · answer #4 · answered by Heart Break Kid 2 · 0 0

http://www.safeshop.org.uk/

2007-07-23 11:27:01 · answer #5 · answered by Anonymous · 0 0

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