1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A galvanometer of resistance ' $G$ ' is shunted by resistance of 'S' ohm. To keep the main current in the circuit unchanged the resistance to be put in series with Galvanometer is

A
$\mathrm{\frac{G^2}{S+G}}$
B
$\frac{\mathrm{G}}{\mathrm{S}+\mathrm{G}}$
C
$\mathrm{\frac{S^2}{G+S}}$
D
$\mathrm{\frac{G S}{S+G}}$
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an A.C. circuit, the potential difference ' $V$ ' and current 'I' are given respectively by $\mathrm{V}=100 \sin (100 \mathrm{t}) \mathrm{V}, \mathrm{I}=100 \sin \left(100 \mathrm{t}+\frac{\pi}{3}\right) \mathrm{mA}$ The power dissipated in the circuit will be [Given $\rightarrow \cos \frac{\pi}{3}=\frac{1}{2}$]

A
$10^4 \mathrm{~W}$
B
10 W
C
2.5 W
D
5 W
3
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An annular ring has mass 10 kg and inner and outer radii are 10 m and 5 m respectively. Its moment of inertia about an axis passing through its centre and perpendicular to its plane is

A
$525 \mathrm{~kgm}^2$
B
$625 \mathrm{~kgm}^2$
C
$525 \mathrm{~gcm}^2$
D
$625 \mathrm{~gcm}^2$
4
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Railway track is made of steel segments separated by small gaps to allow for linear expansion. The segment of track is 10 m long when laid at temperature $17^{\circ} \mathrm{C}$. The maximum temperature that can be reached is $45^{\circ} \mathrm{C}$. Increase in length of the segment of railway track is ' $x$ ' $\times 10^{-5} \mathrm{~m}$. The value of ' $x$ ' is $\left(\alpha_{\text {steel }}=\right.$ $\left.1.2 \times 10^{-5} /{ }^{\circ} \mathrm{C}\right)$

A
168
B
204
C
336
D
530
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