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Give an analogy with the gravitational field direction) and the direction in which the gravitational potential energy increases. two opposing straight electrodes, what can you say about the two adacen For the sheet with straigh field lines near the centers of, and near to the ends, of the electrodes? Can the electric field strength vary along an electric field line? Explain.

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a) The analogy of the gravitational field can be con sidered as the point negative charge that produces electrie field towards inward (as gravitational field) and when another positive charge goes away from this negative charge, potential energy will increase from negative to 0 ( at in finity). b) Since, electric field comes out from positive charge and reach to the negative charged plate. So, near the center direction of electric field is straight and at its end, electric field will be fringed and make a curve. Please, follow the figure.Since, at the center of the plate is symmetric distribution, so, electric field will be symmetric to each other, but on the end side, distribution of charge is not uniform, so, field is not straight but it is curved and density of field lines depends on distribution of charge. c) Let me clear this question, if it is about the single field lines, then, answer would be no. The field lines is assumed as thread like. It is same as we go along its direction ( for single line). Now what is strength of field? Strength of field is determined with the crowd of the electric field lines. Electric field strength will be more where density of electric field lines be more in that region. So, for individual field lines does not have any variation of its strength along its direction. Field lines just shows the direction of electric field. (Note- Actually, electric field lines are just an mathematical entity by which we describe the direction(Note- Actually, electric field lines are just an mathematical entity by which we describe the direction of electric field.) Thank you

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