1
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
 

' $n$ ' small drops of same size are charged to ' $V$ ' volt each. If they coalesce to form a single large drop, then its potential will be

A
$\mathrm{Vn}^{\frac{1}{3}}$
B
$\mathrm{Vn}^{\frac{2}{3}}$
C
$\mathrm{V n}$
D
$\mathrm{Vn}^{-1}$
2
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Air capacitor has capacitance ' $\mathrm{C}_1$ '. The space between two plates of capacitor is filled with two dielectrics as shown in figure. The new capacitance of the capacitor is ' $\mathrm{C}_2$ '. The ratio $\frac{C_1}{C_2}$ is $(d=$ distance between two plates of capacitor, $\mathrm{K}_1$ and $\mathrm{K}_2$ are dielectric constants of two dielectrics respectively)

MHT CET 2024 16th May Evening Shift Physics - Capacitor Question 23 English

A
$\mathrm{K}_1+\mathrm{K}_2$
B
$\frac{\mathrm{K}_1+\mathrm{K}_2}{\mathrm{~K}_1-\mathrm{K}_2}$
C
$\frac{2 \mathrm{~K}_1 \mathrm{~K}_2}{\mathrm{~K}_1+\mathrm{K}_2}$
D
$\frac{\mathrm{K}_1+\mathrm{K}_2}{2 \mathrm{~K}_1 \mathrm{~K}_2}$
3
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A coil is wound on a core of rectangular crosssection. If all the linear dimensions of the core are increased by a factor 2 and number of turns per unit length of coil remains same, the self inductance increases by a factor of (Assume, permeability is same)

A
16
B
8
C
4
D
2
4
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When a small amount of impurity atoms are added to semiconductor, then generally its resistivity

A
may increase or decrease depending upon the percentage of doping.
B
increases.
C
decreases.
D
does not change.
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