Assertion :The magnetic field at the centre of a circular loop carrying current is zero. Reason: Due to symmetry, the field produced by the diametrically opposite points add to each other.

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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Assertion is incorrect, but Reason is correct

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Solution

The correct option is D Assertion is incorrect, but Reason is correct
The assertion is clearly incorrect,
As we know that,
Magnetic field at the centre of a current carrying loop is,
$= \frac{μ_{0} I}{2 R}$

But the reason stated is correct,
We can observe that any two diametrically opposite elements
give the same direction of magnetic field at centre.

Hence option $D$ is the correct answer.

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