AP EAPCET 2025 - 24th May Morning Shift | Moving Charges and Magnetism Question 8 | Physics

Two charged particles of specific charges in the ratio 2:1 and masses in the ratio $1: 4$ moving with same kinetic energy enter a uniform magnetic field at right angles to the direction of the field. The ratio of the radii of the circular paths in which the particles move under the influence of the magnetic field is

$2: 1$

$1: 1$

$4: 1$

$8: 1$

AP EAPCET 2025 - 23rd May Evening Shift

MCQ (Single Correct Answer)

-0

The magnetic moment of an electron moving in a circular orbit of radius $R$ with a time period $T$ is

$\frac{2 \pi R e}{T}$

$\frac{\pi e R}{T}$

$\frac{\pi e R^2}{T}$

$\pi R^2 e^T$

AP EAPCET 2025 - 23rd May Evening Shift

MCQ (Single Correct Answer)

-0

A solenoid of one metre length and 3.55 cm inner diameter carries a current of 5 A . If the solenoid consists of five closely packed layers each with 700 turns along its length, then the magnetic field at its centre is

22 mT

44 mT

35 mT

15 mT

AP EAPCET 2025 - 23rd May Morning Shift

MCQ (Single Correct Answer)

-0

If a charged particle enters a uniform magnetic field normally with certain velocity, then the time period of revolution of the particle

decreases with increase of velocity of the particle.

increases with increase of radius of the orbit.

increases with increase of magnetic field.

decreases with increase of specific charge of the particle.

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