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Variation of electrostatic potential alo...

Variation of electrostatic potential along the x - direction is shown in (Fig. 3.142). The correct statement about electric field is
.

A

x - component at point `B` is maximum

B

x - component at point `A` is toward positive x - axis

C

x - component at point `C` is along negative x - axis

D

x - component at point `C` is along positive x - axis

Text Solution

Verified by Experts

The correct Answer is:
d
We know, `E = -(d V)/(d x)`.
At `B, dV//d x = 0`, hence `E_x = 0`
At `A, d V//d x` is positive, hence `E_x` is negative.
At `C, d V//dx` is negative, hence `E_x` is positive.
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Knowledge Check

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