NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Which of the following statement is correct?

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Correct option: B

Electric field is non-zero on the axis of hollow current carrying wire

Option B (Electric field is non-zero on the axis of hollow current carrying wire) is correct because while the magnetic field is zero inside, the electric field due to the charges on the wire is not necessarily zero.

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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