COMEDK 2024 Evening Shift | Magnetism and Matter Question 1 | Physics

A bar magnet is held perpendicular to a uniform field. If the couple acting on the magnet is to be halved, by rotating it, the angle by which it is to be rotated is

$$90^{\circ}$$

$$30^{\circ}$$

$$60^{\circ}$$

$$45^{\circ}$$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

For a paramagnetic material, the dependence of the magnetic susceptibility $$\chi$$ on the absolute temperature is given as

Independent of $$\mathrm{T}$$

$$ X \propto \frac{1}{T^2} $$

$$ X \propto T $$

$$ X \propto\frac{1}{T} $$

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

The magnetic susceptibility of an ideal diamagnetic substance is

$$-1$$

$$\infty$$

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

The percentage increase in magnetic field $$\mathrm{B}$$ when the space within a current carrying solenoid is filled with a medium of susceptibility 0.004 is

0.04

0.4

Questions Asked from MCQ (Single Correct Answer)

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