AP EAPCET 2024 - 22th May Morning Shift | Moving Charges and Magnetism Question 1 | Physics

Two toroids with number of turns 400 and 200 have average radii respectively 30 cm and 60 cm . If they carry the same current, the ratio of magnetic fields in these two toroids is

$2: 1$

$1: 4$

$2: 3$

$4: 1$

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

Three rings, each with equal radius $r$ are placed mutually perpendicular to each other and each having centre at the origin of coordinate system. $I$ is current passing through each ring. The magnetic field value at the common centre is

AP EAPCET 2024 - 22th May Morning Shift Physics - Moving Charges and Magnetism Question 1 English

zero

$(\sqrt{3}-1) \frac{\mu_0 I}{2 \pi r}$

$\sqrt{3} \frac{\mu_0 dl}{2 r}$

$\sqrt{2} \frac{\mu_0 l}{2 r}$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

A proton and an alpha particle moving with energies in the ratio $1: 4$ enter a uniform magnetic field of 3 T at right angles to the direction of magnetic field. The ratio of the magnetic forces acting on the proton and the alpha particle is

$1: 2$

$1: 4$

$2: 3$

$1: 3$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

A charged particle moving along a straight line path enters a uniform magnetic field of 4 mT at right angles to the direction of the magnetic field. If the specific charge of the charged particle is $8 \times 10^7 \mathrm{C} \mathrm{kg}^{-1}$. The angular velocity of the particle in the magnetic field is

$64 \times 10^4 \mathrm{rad} \mathrm{s}^{-1}$

$32 \times 10^4 \mathrm{rad} \mathrm{s}^{-1}$

$16 \times 10^4 \mathrm{rad} \mathrm{s}^{-1}$

$48 \times 10^4 \mathrm{rad} \mathrm{s}^{-1}$

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