1
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Four electric charges $+\mathrm{q},+\mathrm{q},-\mathrm{q}$ and -q are placed in order at the corners of a square of side 2 L. The electric potential at point midway between the two positive charges is

A
$\frac{1}{4 \pi \mathrm{E}_0} \frac{2 \mathrm{q}}{\mathrm{L}}\left(1+\frac{1}{\sqrt{5}}\right)$
B
$\frac{1}{4 \pi \mathrm{E}_0} \frac{2 \mathrm{q}}{L}\left(1-\frac{1}{\sqrt{5}}\right)$
C
$\frac{1}{4 \pi \mathrm{E}_0} \frac{2 \mathrm{q}}{\mathrm{L}}(1-\sqrt{5})$
D
$\frac{1}{4 \pi \mathrm{E}_0} \frac{2 \mathrm{q}}{\mathrm{L}}(1+\sqrt{5})$
2
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Electron of mass ' $m$ ' and charge ' $q$ ' is travelling with speed ' $v$ ' along a circular path of radius ' $R$ ' at right angles to a uniform magnetic field of intensity ' B '. If the speed of the electron is halved and the magnetic field is doubled, the resulting path would have radius

A
$\frac{\mathrm{R}}{2}$
B
$\frac{\mathrm{R}}{4}$
C
2R
D
4R
3
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two coils have a mutual inductance 0.003 H . The current changes in the first coil according to equation $I=I_0 \sin \omega t$, where $I_0=8 \mathrm{~A}$ and $\omega=100 \pi \mathrm{rad} \mathrm{s}^{-1}$. The maximum value of e.m.f. in the second coil is

A
$2 \pi \mathrm{~V}$
B
$2.4 \pi \mathrm{~V}$
C
$5 \pi \mathrm{~V}$
D
$7.2 \pi \mathrm{~V}$
4
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the output Y in the following circuit, when all the three inputs A, B, C are first 'zero' and then 'one'?

MHT CET 2024 10th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 34 English

A
0, 0
B
0, 1
C
1, 0
D
1, 1
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