Physics, asked by fusetube, 1 year ago

consider there is an hollow conductor...inside the conductor there is a conductor..now what is the electric field inside the big Conductor?

Answers

Answered by GovindRavi
1
Inside the conductor E ( Electric field) is zero...

To understand this , firstly we should about the source of E...
Source of E is a charge particle...E = k q / r^2 ---(i)
where
q = Charge particle
k= coulombs constant
r = location where E can be experienced due to charge q

Here E depends on q as q is on the denominator...If q=0 i. e, there is no charge then Put q = 0 in (i) we E=0
...
If we give charge inside the conductor...Due to repulsive nature , charge distributed themselves in such a way that distance between each of them remain constant or same...

So charges repel and reaches the surface of the conductor.. and stay over there...They do not fly off in air...This is becuase the dilecteic strength of air is much greater...if charges of the conductor have much strength than dilecteic strength of air then charges even can move in air....But this is not possible in this situation...so charges remain on the surface...

So here all the charges are at surface...if we test the presence of charge inside the conductor , we use a device called electeoscope...
Electroscope do not show any deflection...but when we test the presence of charge on the surface , it shows up deflection....So Inside the conductor there is no charge...No cahrge means no Electric field inside the conductor as per relation (i)...

Hope this help.....

fusetube: what is the meaning of dielectric strength of air
GovindRavi: dilectric strength is nothing just and Electeic field...Normally air is an insulator...and you know that what an insulator is..? But Charges can flow in air too though it is an insulator...This can be possible only if charges have greater dilecteic strength....
GovindRavi: you see lightening in the sky...this is due to charges have greater dilectric sttength...so charges flow in air...which colloides with the atoms of air...which causes lots of heat and light...as we see lightening in the sky..
fusetube: Earth is conductor or insulator
fusetube: I have one doubt considered that is a person sitting inside the car ok and if lightning occurs due to the electric field inside a conductor is zero the charges The Lightning doesn't affect him but considered if that person carrying some metallic rod and sitting inside the conductor and What happens now
GovindRavi: what do you think..?
GovindRavi: your question is nice...
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