Question
The potential at a point x (measured in µm) due to some changes situated on the x-axis is given by V (x) = 20 /x2- 4) volts. The electric field E at x = 4 µm is given by
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5/3 Volt/µm and in the –ve x direction
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5/3 Volt/µm and in the +ve x direction
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10/9 Volt/µm and in the -ve x direction
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10/9 Volt/µm and in the +ve x direction
Solution
D.
10/9 Volt/µm and in the +ve x direction
