Assertion :A point charge $q$ is placed in front of a solid conducting sphere. Electric field due to induced charges at the centre of sphere is zero. Reason: Electric field at point inside the solid body of conductor is zero.

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
We know that inside the conductor electric field is zero. So,
${\to E}_{N e t} = {\to E}_{i n d} + {\to E}_{e x t} = 0$
$\Rightarrow {\to E}_{i n d} = - {\to E}_{e x t} = - \frac{K q}{r^{2}}^i$
Thus, assertion is incorrect and reason is correct.
Ans: $(D)$

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Assertion :A point charge q is placed in front of a solid conducting sphere. Electric field due to induced charges at the centre of sphere is zero. Reason: Electric field at point inside the solid body of conductor is zero.

The correct option is D Assertion is incorrect but Reason is correctWe know that inside the conductor electric field is zero. So,→ENet=→Eind+→Eext=0⇒→Eind=−→Eext=−Kqr2^iThus, assertion is incorrect and reason is correct.Ans: (D)

Assertion :A point charge $q$ is placed in front of a solid conducting sphere. Electric field due to induced charges at the centre of sphere is zero. Reason: Electric field at point inside the solid body of conductor is zero.