Which of the following is true for the figure showing electric lines of force? (E is electrical field, V is potential)
EA>EB
VA>VB
VB>VA
EB>EA
A
EA>EB
B
VA>VB
C
VB>VA
D
EB>EA
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Solution
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As the denser field lines give the higher electric field, so the electric filed at A is greater than the electric field at B. As E=−dVdx so the potential at B is greater than the potential at A. Ans: (A),(D)
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