1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following is the correct equation for the electric circuit shown in the figure?

MHT CET (PCB) 2024 22th April Morning Shift Physics - Current Electricity Question 3 English
A
$\quad E_1-\left(i_1+i_2\right) R+i_1 r_1=0$
B
$\quad E_1-\left(i_1+i_2\right) R-i_1 r_1=0$
C
$\mathrm{E}_2-\mathrm{i}_2 \mathrm{r}_2-\mathrm{E}_1-\mathrm{i}_1 \mathrm{r}_1=0$
D
$\quad E_2-\left(i_1+i_2\right) R+i_2 r_2=0$
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A pendulum is performing simple harmonic motion. The acceleration of the bob is $20 \mathrm{~cm} \mathrm{~s}^{-2}$ at a distance of 5 cm from mean position. The time period of oscillation is

A
2 s
B
$\pi \mathrm{s}$
C
$2 \pi \mathrm{~s}$
D
1 s
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A spherical body of radius ' $r$ ' radiates power ' $P$ ' at $T$ kelvin. If the radius $s$ halved and the temperature doubled the power radiated in the same time ' t ' will be

A
$\frac{\mathrm{P}}{2}$
B
2 P
C
4 P
D
8 P
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
For a common emitter transistor configuration the ratio of $\frac{\mathrm{I}_{\mathrm{C}}}{\mathrm{I}_{\mathrm{E}}}=0.96$, then the current gain in this configuration is
A
6
B
12
C
24
D
48
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