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Home  >>  AIMS  >>  Class12  >>  Physics  >>  Electric Charges and Fields
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Figure 2.17 shows the lines of constant potential in a region in which an electric field is present. The value of potentials are written. At which of the points A, B and C is the magnitude of the electric field is the greatest?

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$\overrightarrow{E}= -\large\frac{-dv}{dr} \hat n$
The potential difference between any two connective line $dv=v_1– v_2 = 10v$ =constant and hence E will be maximum where the distance dr between the lines minimum. i.e. at B where the lines are closest.
answered Jun 8, 2014 by meena.p
 

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