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Four point charges each of +q are rigidly fixed at the four corners of a square planar soap film of side 'a'.The surface tension of the soap film is T.The system of charges and the planar film are in equilibrium and a=k[q2/T] ...
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*Image* How to do di type of sums? ...
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What is the capacitance of a capacitor having plates of area A1 & A2 at a distance d? Please post explanation as well. ...
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Assertion: In series combination, charges on two capacitors are always equal. Reason: If charges are same, the total potential difference applied across two capacitors will be distributed in inverse ratio of capacities. ...
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Assertion: A small electric dipole is moved translationally from higher potential to lower potential in uniform electric field. Work done by electric field is positive. Reason: When a positive charge moved from higher to lowe ...
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A particle of mass m and charge q moves at a high speed along the x-axis.It is initially near x = -∞ and it ends up near x = +∞. A second charge Q is fixed at the point x=0,y = -d.As the moving charge passes the stationar ...
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A sphere of radius 1 cm has potential of 8000 V, then energy density near its surface will be__64 X 105 J/m3__8 X 103 J/m3__32 J/m3__2.83 J/m3 ...
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Which of the following statement(s) is (are) correct? ...
replied2014-04-12 07:03:08
replied2014-03-27 21:15:31
replied2014-03-20 04:03:05
replied2014-03-15 09:26:45
replied2014-03-06 22:16:48
replied2014-03-05 21:49:43
replied2014-02-16 22:06:54
asked2014-01-01 01:18:44
asked2012-07-22 21:40:04