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#1 Posted 07:11am 27-02-10 question frm IIT 1999Two identical metal plates are given charges q1 and q2(<q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C. What will be the potential difference between the plates? now...what i find in every book is that...they are solving this question by taking the electric field intensity to be σ/2ε[ss]0[/ss]... but these are "metal" plates..that means charged conductors....so the elecric field should be σ/ε[ss]0[/ss]....and then the answer should come out to be(q1-q2)/C and not (q1 - q2)/2C |
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#2 Posted 10:17am 27-02-10 Re: question frm IIT 1999σ/ε tab hoga jab charge dono plate is having eqal and opp. charge
yahoo |
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#3 Posted 11:43am 27-02-10 Re: question frm IIT 1999arre yar....par i hav always read.....EF near a charged conducting surface is σ/ε and is normal to the surface....while the field due to a non conducting plane sheet of charge has EF σ/2ε n ya........is bat ko consider kar k to.....EF in between th plates of a capacitor should be 2σ/ε........nw i am really getting confused.... |
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#4 Posted 8:05pm 27-02-10 Re: question frm IIT 1999someone help yarrr....... 3 din bad paper hai........... |
