AP EAPCET 2024 - 19th May Evening Shift | AP EAPCET Year Wise Previous Years Questions

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

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A wire shaped in a regular hexagon of side 2 cm carries a current of 4 A . The magnetic field at the centre of hexagon is AP EAPCET 2024 - 19th May Evening Shift Physics - Moving Charges and Magnetism Question 1 English

AP EAPCET 2024 - 19th May Evening Shift Physics - Moving Charges and Magnetism Question 1 English

$4 \sqrt{3} \times 10^{-5} \mathrm{~T}$

$8 \sqrt{3} \times 10^{-5} \mathrm{~T}$

$\sqrt{3} \times 10^{-5} \mathrm{~T}$

$6 \sqrt{3} \times 10^{-5} \mathrm{~T}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

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A tightly wound coil of 200 turns and of radius 20 cm carrying current 5 A . Magnetic field at the centre of the coil is

$3.14 \times 10^{-3} \mathrm{~T}$

$3.14 \times 10^{-2} \mathrm{~T}$

$628 \times 10^{-4} \mathrm{~T}$

$628 \times 10^{-3} \mathrm{~T}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

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The domain in ferromagnetic material is in the form of a cube of side $2 \mu \mathrm{~m}$. Number of atoms in that domain is $9 \times 10^{10}$ and each atom has a dipole movement of $9 \times 10^{-24} \mathrm{Am}^2$. The magnetisation of the domain is (approximately).

$10 \times 10^4 \mathrm{Am}^{-1}$

$8 \times 10^4 \mathrm{Am}^{-1}$

$12 \times 10^4 \mathrm{Am}^{-1}$

$9 \times 10^4 \mathrm{Am}^{-1}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

Magnetic field at a distance of $r$ from $Z$-axis is $B=B_0$ $r t \hat{\mathbf{k}}$ present in the region. $B_0$ is constant and $t$ is time. The magnitude of induced electric field at a distance of $r$ from $Z$-axis is

$\frac{B_0 r^3}{3}$

$\frac{2 \pi B_0 r}{3}$

$\frac{B_0 r^2}{2 \pi}$

$\frac{B_0 r^2}{3}$

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