A long square charged sheet has an edge length L. a. Find...

A long square charged sheet has an edge length L. a. Find the magnitude of an electric field to either side of an insulating sheet if the charge +Q is in one side. b. The magnitude of an electric field to either side of the sheet if the sheet is conducting and it has -Q charge. c. The magnitude of an electric field if the sheet is insulating and a charge is +Q on each side. d. The magnitude of an electric field in between two insulating plates having equal and opposite charges of magnitude Q. e. The magnitude of an electric field in between two conducting plates having equal and opposite charges of magnitude Q. f. If electric file E is passed through a chargeless conducting square sheet of length L, perpendicular to its surface from right to left, find the charge on the left surface. g. If electric file E is passed through a chargeless non-conducting square sheet of length L, perpendicular to its surface from right to left, find the charge on the left surface. I. (a) Q/(4?0L2) (b) Q/(4?0L2) (c) Q/(2?0L2) (d) Q/(?0L2) (e) 2Q/(?0L2) (f) -2E?0L2 (g) zero II. (a) Q/(2?0L2) (b) Q/(?0L2) (c) 2Q/(?0L2) (d) Q/(2?0L2) (e) Q/(?0L2) (f) -E?0L2 (g) 2E?0L2 III. (a) Q/(2?0L2) (b) Q/(?0L2) (c) 2Q/(?0L2) (d) Q/(?0L2) (e) Q/(2?0L2) (f) zero (g) zero IV. (a) Q/(?0L2) (b) Q/(2?0L2) (c) Q/(?0L2) (d) Q/(2?0L2) (e) Q/(?0L2) (f) -E?0L2 (g) zero V. (a) Q/(2?0L2) (b) Q/(2?0L2) (c) Q/(?0L2) (d) Q/(?0L2) (e) Q/(?0L2) (f) E?0L2 (g) zero

Transcript

00:01 This question we are given here.

00:02 Long square, long square, charge seat has a age of length.

00:09 So it's length we are given here.

00:11 L.

00:13 And in the first part of this question we want to find the magnitude of electric field to the either side of an insulating seat if a charge q is in one side.

00:22 So it's look like this seat.

00:25 So let's draw this that seat.

00:27 So this is a seat suppose and here a charge on a one side.

00:31 Side so and we are given a charge the value of charge we are given is q now we want to find electric field so electric field a which is equal to we know that the formula is q divided by a the area so we can write q divided by l square because we have a long square seat now here we can write ea which is equal to here we can write ea which is equal to q divided by 2 here to q divided by 2 multiple of option or 0 multiplied by l squared.

01:02 So this is the value of electric field e.

01:05 Now let's write out see our second part of this question.

01:09 In the second subpart we want to find the magnitude of electric field to either side of the seed if seed is conducting and then and plus and minus charge so conducting as a minus charge so here suppose look sees the seat is look like this way this is seed and it is 2d seat it looks like 2d seat here this is look this is 2d 3 that that is 3d street that is 3d lead here and that conducting seat you can say this conducting seat of negative charge conducting seat and that is conducting negative charge here and we can write the a which is equal to we can write the charge is minus q divided by 2 ophthalal en order here you can write 2 opcenae nore and the lens here and here lens is minus l squared so this is the electric if you talk about magnitude so here we can make q divided by 2 obscenov an or l square so this is the value of electric field it is easy formula we are just using this formula here now let's all our third part of this equation so in the third part we're given here magnitude of electric we want to find magnitude of electric field the seed is insulating a charge plus q on each side so here you see is a plus q charge on each side each side so if you plus q charge on each side so we can write the e would be a twinge due to the both side so here we know that is 2 times electric field is double is double here so here we can write e which is equal to q divided by epsilon in multiple by l square this is the value of electric field now let's write out here let's find there are force apart of this so here again well let's find our force apart of this question so in the force apart we want to have magnitude of electric field between two insulating plates and equal and opposite charge of magnitude we have charge of positive charge and here we have another plate it has a negative charge here so you know direction here is close to negative and now electric field is here the positive charge plus to negative and now electric field is here the positive charge plus q and and negative charge minus q.

03:39 Now we can write electric field a which is equal to 2 multiplied by ea which is equal to we can write q divided by abttabt al x2malda by l square...

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