NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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The scientist whose major contribution is
towards the measurement of electronic charge

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Correct option: B

R.A. Millikan

Option B (R.A. Millikan) is correct because R.A. Millikan is famous for his oil drop experiment, which accurately measured the elementary electric charge.

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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