Assertion :At a point electric potential is decreasing along x-axis at a rate of $10 V / m$ . Therefore x-component of electric field at this point should be $10 V / m$ along x- axis. Reason: Magnitude of $E_{x} = \frac{\partial V}{\partial x}$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The electric field is rate of change of potential and in direction of the steepest descent of the potential.
So it is $10 V / m$ along x-axis.
Thus, both assertion and reason are true and reason is correct explantion of the assertion.

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Similar questions

Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

y = A sin (k x - ω t)

x = 0

y -

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H_{2}

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(1 + \frac{P b}{R T})

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