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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Dec 2007 23:33:15 IST
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Explain the method of finding the self potential energy of a body having varying electric field by using concept of energy density?
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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5 Dec 2007 23:38:43 IST
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i am not sure. c if u can find nething in physics.org
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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5 Dec 2007 23:42:35 IST
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Dear i m not asking 4 any link.i wnt it solved in just five minutes.
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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5 Dec 2007 23:47:43 IST
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at least tell me which chapter??
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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5 Dec 2007 23:55:49 IST
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It's in electrostatics. source:-mtg "interactive physics" volume 6.Pg:-49-50.(not getting the integral portion).
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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5 Dec 2007 23:56:56 IST
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Is it enough now?Want me to type the whole page here??????? just joking................
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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6 Dec 2007 00:00:02 IST
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seriously!!! now, tell me the formula.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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6 Dec 2007 00:00:21 IST
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seriously!!! now, tell me the formula.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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6 Dec 2007 00:00:23 IST
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seriously!!! now, tell me the formula.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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6 Dec 2007 00:00:42 IST
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seriously!!! now, tell me the formula.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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6 Dec 2007 00:38:08 IST
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Energy density means the energy stored in the body per unit volume. It's is given by:- E d=1/2  oE 2K. Where, E=electric field in the region. K=dielectric constant of the medium. this concept cen be used to calculate the energy density of the body by simply multiplying it with the volume of the body provided the electric field due to body in that region is constant. in case of varying electric field(like a charged sphere) we have to consider a small volume and then find the energy contained in that samll volume and then finally integrate it for finding the energy of the body. The energy inside the sphere is given as:-E D=Q 2/(40  R). and the energy outside the sphere is given as:-E D=Q 2/(8 R). Im not getting this. hope it is clear now.
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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6 Dec 2007 00:39:49 IST
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Isn't that too much serious.??
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The heights by the great men reached and kept were not attained by a sudden flight ,but they while their companions slept were toiling upwards in the night. |
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6 Dec 2007 00:41:19 IST
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Both electric fields and magnetic store energy. For the electric field the energy density is This energy density can be used to calculate the energy stored in a capacitor. For the magnetic field the energy density is which is used to calculate the energy stored in an inductor.
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Ken
From: UNITED STATES, Green Bay, Wisconsin
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6 Dec 2007 00:47:29 IST
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That's right but in case of varying electric field we cannot the formula directly.Its to integrated.
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6 Dec 2007 01:08:21 IST
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