1
MHT CET 2021 21th September Evening Shift
+1
-0

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

A
anticlockwise
B
horizontal
C
vertical
D
clockwise
2
MHT CET 2021 21th September Morning Shift
+1
-0

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

A
1.85
B
0.15
C
$$-0.15$$
D
$$-0.85$$
3
MHT CET 2020 16th October Morning Shift
+1
-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)

A
$$\frac{\mu_0}{4 \pi}(\sqrt{3}) \frac{M}{d^3}$$
B
$$\frac{\mu_0}{4 \pi}(\sqrt{2}) \frac{M}{d^3}$$
C
$$\frac{\mu_0}{4 \pi}(\sqrt{5}) \frac{M}{d^3}$$
D
$$\left(\frac{2 \mu_0}{\pi}\right) \frac{M}{d^3}$$
4
MHT CET 2020 16th October Morning Shift
+1
-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

A
$$10^{-1}$$
B
$$10^{-2}$$
C
$$10^{-4}$$
D
$$10^{-3}$$
EXAM MAP
Medical
NEET