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Byju's Answer

Standard XII

Physics

Electric Field Due to Disk and Infinitely Large Sheet

For the given...

Question

For the given spherical Gaussian surface around a point charge $+ q$ placed at its centre, angle between electric field $\to E$ and area vector $\to A$ at the surface is

30^{\circ}

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60^{\circ}

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90^{\circ}

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0^{\circ}

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Solution

The correct option is D $0^{\circ}$
For any point positive charge, electric field is divergent radially outward.

Also, normal to the spherical surface is radially outward. Hence, area vector is radially outward. Therefore, angle between electric field $\to E$ and area vector $\to A$ at the surface is $0^{\circ}$ .

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For the given spherical Gaussian surface around a point charge +q placed at its centre, angle between electric field →E and area vector →A at the surface is

The correct option is D 0∘For any point positive charge, electric field is divergent radially outward. Also, normal to the spherical surface is radially outward. Hence, area vector is radially outward. Therefore, angle between electric field →E and area vector →A at the surface is 0∘.

For the given spherical Gaussian surface around a point charge $+ q$ placed at its centre, angle between electric field $\to E$ and area vector $\to A$ at the surface is