MHT CET 2021 21th September Evening Shift | Magnetism and Matter Question 10 | Physics

The north pole of a long horizontal bar magnet is being brought towards closed circuit consisting of a coil. The direction of induced current produced in it is

anticlockwise

horizontal

vertical

clockwise

MHT CET 2021 21th September Morning Shift

MCQ (Single Correct Answer)

-0

What is susceptibility of a medium, if its relative permeability is 0.85?

1.85

0.15

$$-0.15$$

$$-0.85$$

MHT CET 2020 16th October Morning Shift

MCQ (Single Correct Answer)

-0

Two identical bar magnets each of magnetic moment $$M$$, separated by some distance are kept perpendicular to each other. The magnetic induction at a point at the same distance $$d$$ from the centre of magnets, is ($$\mu_0=$$ permeability of free space)

$$\frac{\mu_0}{4 \pi}(\sqrt{3}) \frac{M}{d^3}$$

$$\frac{\mu_0}{4 \pi}(\sqrt{2}) \frac{M}{d^3}$$

$$\frac{\mu_0}{4 \pi}(\sqrt{5}) \frac{M}{d^3}$$

$$\left(\frac{2 \mu_0}{\pi}\right) \frac{M}{d^3}$$

MHT CET 2020 16th October Morning Shift

MCQ (Single Correct Answer)

-0

An iron rod is placed parallel to magnetic field of intensity $$2000 \mathrm{~A} / \mathrm{m}$$. The magnetic flux through the rod is $$6 \times 10^{-4} \mathrm{~Wb}$$ and its cross-sectional area is $$3 \mathrm{~cm}^2$$. The magnetic permeability of the rod in $$\frac{\mathrm{Wb}}{\mathrm{A}-\mathrm{m}}$$ is

$$10^{-1}$$

$$10^{-2}$$

$$10^{-4}$$

$$10^{-3}$$

MHT CET Subjects