1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A current carrying coil experiences a torque due to a magnetic field. The value of the torque is $80 \%$ of the maximum possible torque. The angle between the magnetic field and the normal to the plane of the coil is
A
$30^{\circ}$
B
$45^{\circ}$
C
$\tan ^{-1}\left(\frac{3}{4}\right)$
D
$\tan ^{-1}\left(\frac{4}{3}\right)$
2
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
An electron in moving with a velocity $\left[\mathbf{i}+3 \hat{\mathbf{j}} \mathrm{~ms}^{-1}\right.$ in an electric field $(\hat{\mathbf{i}}+6 \hat{\mathbf{j}}+2 \hat{\mathbf{k}}) \mathrm{Vm}^{-1}$ and a magnetic field of $(\Omega \mathbf{j}+3 \mathbf{k})$ T. Then, the magnitude and direction (with $X$-axis) of the Lorentz force acting on the electron is
A
$96 \times 10^{-11} \mathrm{~N}, 8=\cos ^{-1}\left(\frac{2}{\sqrt{5}}\right)$
B
$96 \times 10^{-19} \mathrm{~N}, \theta=\cos ^{-1}\left(\frac{5}{\sqrt{2}}\right)$
C
$215 \times 10^{-18} \mathrm{~N}, . \theta=\cos ^{-1}\left(\frac{2}{\sqrt{5}}\right)$
D
$2.15 \times 10^{-14} \mathrm{~N}, \theta=\cos ^{-1}\left(\frac{5}{\sqrt{2}}\right)$
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A magnet suspended in a uniform magnetic field is heated, so as to reduce its magnetic moment by $19 \%$. By doing this, the time period of the magnet approximately
A
incresse by $11 \%$
B
decrease by $19 \%$
C
increases by $19 \%$
D
decreases by $4 \%$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the current through an inductor increases from 2A to 3A. The magnetic energy stored in the inductor increases by
A
$125 \%$
B
$225 \%$
C
$50 \%$
D
$75 \%$
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