1
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

Two identical charged conducting spheres $A$ and $B$ have their centres separated by a certain distance. Charge on each sphere is $q$ and the force of repulsion between them is $F$. A third identical uncharged conducting sphere is brought in contact with sphere $A$ first and then with $B$ and finally removed from both. New force of repulsion between spheres $A$ and $B$ (Radii of $A$ and $B$ are negligible compared to the distance of separation so that for calculating force between them they can be considered as point charges) is best given as:

A
$\frac{F}{2}$
B
$\frac{3 F}{8}$
C
$\frac{3 F}{5}$
D
$\frac{2 F}{3}$
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

A metal cube of side $$5 \mathrm{~cm}$$ is charged with $$6 \mu \mathrm{C}$$. The surface charge density on the cube is

A
$$0.125 \times 10^{-3} \mathrm{C} \mathrm{m}^{-2}$$
B
$$0.25 \times 10^{-3} \mathrm{C} \mathrm{m}^{-2}$$
C
$$4 \times 10^{-3} \mathrm{C} \mathrm{m}^{-2}$$
D
$$0.4 \times 10^{-3} \mathrm{C} \mathrm{m}^{-2}$$
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The value of electric potential at a distance of $$9 \mathrm{~cm}$$ from the point charge $$4 \times 10^{-7} \mathrm{C}$$ is [Given $$\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \mathrm{~N} \mathrm{~m}^2 \mathrm{C}^{-2}$$] :

A
$$4 \times 10^2 \mathrm{~V}$$
B
$$44.4 \mathrm{~V}$$
C
$$4.4 \times 10^5 \mathrm{~V}$$
D
$$4 \times 10^4 \mathrm{~V}$$
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A thin spherical shell is charged by some source. The potential difference between the two points $$C$$ and $$P$$ (in V) shown in the figure is:

(Take $$\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9$$ SI units)

NEET 2024 Physics - Electrostatics Question 5 English

A
$$3 \times 10^5$$
B
$$1 \times 10^5$$
C
$$0.5 \times 10^5$$
D
Zero
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