The surface charge density of the earth is σ = - 1 . 33 n C/m 2 which is about 8 . 3 × 10 9 electrons per square meter. If that is the case why don't we feel it ?

Our body and the earth surface become equipotential (at equal potential). It means there is no potential difference between the earth and our body. Hence no current flows through our body and therefore we do not experience an electric shock. And hence the surface charge density of the earth is not felt by us.

Two point charges of + 5 μ C are so placed that they experience a force of 8 . 0 × 10 - 3 N . They are moved apart so that the force is now 2 . 0 × 10 - 3 N . The distance between them is now

four times the previous distance

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Physics>Chapter 10 - Electrostatics>Can you tell?

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Three charges, $q$ each, are placed at the vertices of an equilateral triangle. What will be the resultant force on charge $Q$ placed at the centroid of the triangle ?

Important Questions on Electrostatics

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Physics>Chapter 10 - Electrostatics>Can you tell?

Why a small voltage can produce a reasonably large electric field ?

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IMPORTANT

Physics>Chapter 10 - Electrostatics>Can you tell?

Lines of force are imaginary, can they have any practical use?

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11th Maharashtra Board

IMPORTANT

Physics>Chapter 10 - Electrostatics>Can you tell?

The surface charge density of the earth is

σ = - 1.33

n C/m² which is about

8.3 \times 10^{9}

electrons per square meter. If that is the case why don't we feel it ?

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11th Maharashtra Board

IMPORTANT

Physics>Chapter 10 - Electrostatics>Exercises>Q 1

A positively charged glass rod is brought close to a metallic rod isolated from ground. The charge on the side of the metallic rod away from the glass rod will be

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Physics>Chapter 10 - Electrostatics>Exercises>Q 1

A metal sphere cools from