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In the uniform electric field shown in f...

In the uniform electric field shown in figure, find :
a. `V_A-V_D`
b. `V_A-V_C`
c. `V_B-V_D`
d. `V_C-V_D`

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The correct Answer is:
A, B, C, D
`V_A =V_D and V_B=V_C `as the points A and D or B and C are lying on same equipotential surface (`_|_` to electric field lines). Further`V_A or V_D gtV_B or V_C` as electric lines always flow from higher potential to lower potential.
`V_A-V_B=V_D-V_C=Ed`
`=(20)(1)=20V`
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