NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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The magnitude of the electric field due to a point charge object at a distance of 4.0 m is 9 N/C. From the same
charged object the electric field of magnitude,

16\frac{N}{C}

will be at a distance of

View answer and explanation

Correct option: A

3 m

Option A (3 m) is correct because the electric field due to a point charge is inversely proportional to the square of the distance, so

E \propto 1/r^2

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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