#PHYSICS

77 messages · Page 1 of 1 (latest)

loud orbit
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First he says Net EF =0 inside the plate but then he says it isnt.. can someone explain this to me?

rough adderBOT
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vital solstice
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The net E inside a conductor has to be zero always, to achieve this conductor makes an induced electric field inside it so that it can cancel the External field

So Enet = 0
But the book is finding the value of Einduced which is not equal to zero

buoyant moon
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Can you give us a bit more of the text?

loud orbit
loud orbit
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how is that so

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please ping if answeing too

loud orbit
vital solstice
vital solstice
buoyant moon
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Ohh wait

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I understand it now

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So in the first case, we only got one charged plate

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And the charges induced on that plate cancel our the external electric field

buoyant moon
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And in the second case, we introduced another plate

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So now the external electric field cancels out the electric field due to THAT plate

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Which leaves us with the induced charged

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And from gauss law

loud orbit
buoyant moon
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Electric field due to a metallic sheet is sigma/2 epsilon not

vital solstice
loud orbit
buoyant moon
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And since they have effect in the same direction

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We add them up

loud orbit
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the Einduced right

buoyant moon
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Which gives us sigma/2epsilom not

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You got me bruv?

vital solstice
# loud orbit yea and that cancels out

To cancel that conductor induces charge on surface so that a new electric field of same magnitude but opposite direction forms inside it (this is called induced ef) which is what we are finding

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We want the amount of charge induced

loud orbit
vital solstice
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Yeah so net ef =0 but the book is finding the amount of charge should be induced on surface to do so

loud orbit
buoyant moon
vital solstice
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This is induced field

loud orbit
vital solstice
vital solstice
buoyant moon
vital solstice
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Induced cancels out External

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We are finding how much to induce so that happens

loud orbit
vital solstice
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Yes

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But to cancel it how much do we need in the first place?

loud orbit
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so there is no EF basically, we just calc how much ef is needed

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efinduced*

buoyant moon
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one gets cancelsd

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one stays

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to rule them all

loud orbit
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Bro what?

loud orbit
buoyant moon
loud orbit
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Avg guy with no Phy teacher 😭

buoyant moon
loud orbit
loud orbit
buoyant moon
loud orbit
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fine

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@buoyant moon ill joi

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but

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which

buoyant moon
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the sciences server

broken tigerBOT
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@loud orbit

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cinder maple
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this is all based on approximations btw

broken tigerBOT
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@cinder maple @buoyant moon @vital solstice The user still needs help with this help request.

loud orbit