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BOTH ARE just convention , possitive and negative are simply lebel of two diffrent kind of charge without any deeper significance attached to them , since , we arbitarily assigned it , we have given...
@ shreyas frst of all i would like to tell , this chapter is full of derivation , and u need only practice at least 3 times to a single derivation . and remember 1 more thing – cbse have given this...
@ krishna there are 2 way of creating an electric field , – introduce an electrically charged particle , or introduce a time varying magnetic field . however , there are no magnetically charged...
@ xavier when coulomb tested with two charges as expertimental material , then he found that , the force of attraction between these two charges , will be directly proportional to the magnitude of...
it must be neutra. 2 and 4 show attraction means have opp. charge 2 too show attraction with 1 means 1 and 4 should have same charge but as they are showing attraction too then 1 should be...
@ sourabh In electrostatics u have to assume some complicated thing , so, for solving the problem , u need some assumption power like the presence of charge in a cylinder etc . and if u knws the...
The given electric field should exert an upward force on the particle so that it cancels the gravitational force which acts on the particle in the downward direction. Since the electric field is...
@ mohit rubbing of one part of body with other part is known as electrification by friction . or simply u can say charging of a body by rubbing witone anathor. example – when we rub our one hand with ...
Let the charges be -q, +q and -q. Distance between two charges = a Energy of the system putting the values we get U initial = Final energy of the system, U final = Therefore, work required = U final...
Since the condenser(capacitor) plates are oppositely charged, they exert (equal)force on the charged particle in the same direction and hence the total force on the particle is the sum of these two...
The correct answer for this question is 3C/4. For solving these types of questions, mark the capacitor plates having same voltages and then simplify the circuit diagram by connecting the same voltage ...
@ ashmeet i can tell you how to approach such kind of questions , in this perticular case u have to apply KVL . let v =0 then by applying kvl we get 12-9/2 +24-q/4 =0 =36-3q/4=0 now as per the...
radius increases duevrepulsion of cahrges. or by another words while adding charge potential..increases. taaahen to compensate potential..its radius increaes
If the Gaussioan surface would pass through the dicrete charge then there would be a contradiction with what part of chrge would be considered inside the surface that is to say that Electric field...
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