AP EAPCET 2024 - 22th May Morning Shift | Electrostatics Question 7 | Physics

If four charges $q_1=+1 \times 10^{-8} \mathrm{C}, q_2=-2 \times 10^{-8} \mathrm{C}$, $q_3=+3 \times 10^{-8} \mathrm{C}$ and $q_4=+2 \times 10^{-8} \mathrm{C}$ are kept at the four corners of a square of side 1 m , then the electric potential at the centre of the square is

300 V

200 V

510 V

410 V

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

The electric field intensity $E$ at a distance of 3 m from a uniform long straight wire of linear charge density $0.2 \mu \mathrm{~cm}^{-1}$ is

$1.2 \times 10^3 \mathrm{Vm}^{-1}$

$0.6 \times 10^3 \mathrm{Vm}^{-1}$

$1.8 \times 10^3 \mathrm{Vm}^{-1}$

$2.4 \times 10^3 \mathrm{Vm}^{-1}$

AP EAPCET 2024 - 21th May Morning Shift

MCQ (Single Correct Answer)

-0

A point charge $q \mathrm{C}$ is placed at the centre of a cube of a side length $L$. Then, the electric flux linked with each face of the cube is

$\frac{q}{\varepsilon_0}$

$\frac{q}{L^2 \varepsilon_0}$

$\frac{q}{6 L^2 \varepsilon_0}$

$\frac{q}{6 \varepsilon_0}$

AP EAPCET 2024 - 21th May Morning Shift

MCQ (Single Correct Answer)

-0

Three equal electric charges of each charge $q$ are placed at the vertices of an equilateral triangle of side of length $L$. Then, potential energy of the system is

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{3 q^2}{L}$

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{q^2}{3 L}$

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{2 q^2}{3 L}$

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{q^2}{L}$

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