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The electric potential decreases uniform...

The electric potential decreases uniformly from 180V to 20V as one moves on the X-axis from `x=-2cm ` to `x= +2cm`. The electric field at the origin:

A

must be equal to 40 V/cm.

B

may be equal to 40V/cm.

C

may be greater than 40V/cm

D

may be less than 40V/cm

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The correct Answer is:
B, C
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