1.

The electric potential decreases uniformly from 120 V to 80 V as one moves on the X-axis from x = -1 cm to x = + 1 cm. The electirc field at the origin

Answer»

MUST be EQUAL to 20 V/cm
may be equal to 20 V/cm
may be GREATER than 20 V/cm
may be LESS than 20 V/cm

Answer :A


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