1
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The magnetising field which produces a magnetic flux of $22 \times 10^{-6} \mathrm{~Wb}$ in a metal bar of area of cross-section $2 \times 10^{-5} \mathrm{~m}^{2}$ is (susceptibility of the metal $=699$ )
A
$2500 \mathrm{Am}^{-1}$
B
$1250 \mathrm{Am}^{-1}$
C
$3750 \mathrm{Am}^{-1}$
D
$5000 \mathrm{Am}^{-1}$
2
TG EAPCET 2024 (Online) 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A short bar magnet placed in a uniform magnetic field making an angle with the field experiences a torque.If the angle made by the magnet with field is changed from $30^{\circ}$ to $45^{\circ}$, the torque on the magnet
A
increases by $50 \%$
B
decreases by $50 \%$
C
decreases by $41.4 \%$
D
increases by $41.4 \%$
3
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If a bar magnet of moment $10^{-4} \mathrm{Am}^2$ is kept in a uniform magnetic field of $12 \times 10^{-3} \mathrm{~T}$ such that it makes angle of $30^{\circ}$ with the direction of magnetic field, then the torque acting on the magnet is
A
$6 \times 10^{-7} \mathrm{~N}-\mathrm{m}$
B
$6 \times 10^{-5} \mathrm{~N}-\mathrm{m}$
C
$12 \times 10^{-7} \mathrm{~N}-\mathrm{m}$
D
$12 \times 10^{-5} \mathrm{~N}-\mathrm{m}$
4
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The most exotic diamagnetic materials are
A
superconductors
B
semiconductors
C
conductors
D
resistors
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