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The electric potential decreases Wliforr...

The electric potential decreases Wliforrnly from `1 00`V to `50`V as one moves on the y-axis from y = -Im toy= + l m. The electric field at the origin :

A

Must be equal to `25V//m`

B

May be equal to `25V//m`

C

May be less than `25V//m`

D

May be greater than `25V//m`

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