NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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A comb run through one’s dry hair attracts small bits of paper. This is due to

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Correct option: C

The atoms in the paper get polarised by the charged comb

Option C (The atoms in the paper get polarised by the charged comb) is correct because the charged comb induces a polarization in the paper, leading to an attractive force.

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The ratio of magnitude of electric displacement (D) and electric field (E) is Gauss’s Law is valid for In hydrogen like system the ratio of coulombian force and gravitational force between an electron and a proton is in the order of: Statement-1:

\overrightarrow{{E}}

in outside velocity of a conductor depends only on the local charge density

\alpha

.
Statement-2:

\overrightarrow{{E}}

in outside vicinity of a conductor is given by

\frac{\sigma}{\varepsilon_0}

. Two charges each of 1 coulomb are at a distance 1

km

apart the force between them is

P \times 10^3

then value of

{P}

is Electric field due to point charge depends on distance

r