1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the potential difference across a capacitor is increased from $$5 \mathrm{~V}$$ to $$15 \mathrm{~V}$$, then the ratio of final energy to initial energy stored in the capacitor is

A
$$1: 3$$
B
$$27: 1$$
C
$$3: 1$$
D
$$9: 1$$
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The charge on each capacitor when a voltage source os 15 V is connected in the circuit as shown, is

MHT CET 2021 23rd September Evening Shift Physics - Capacitor Question 3 English

A
75 $$\mu$$C
B
150 $$\mu$$C
C
30 $$\mu$$C
D
60 $$\mu$$C
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two parallel plates with dielectric placed between the plates are as shown in figure. The resultant capacity of capacitor will be [A = area of plate. $$t_1, t_2$$ and $$t_3$$ are thickness of dielectric slabs, $$\mathrm{k}_1, \mathrm{k}_2$$ and $$\mathrm{k}_3$$ are dielectric constants.

MHT CET 2021 23th September Morning Shift Physics - Capacitor Question 7 English

A
$$\frac{A \varepsilon_0}{\left[\frac{t_1+t_2+t_3}{k_1+k_2+k_3}\right]}$$
B
$$ \frac{A \varepsilon_0\left(k_1 k_2 k_3\right)}{t_1 t_2 t_3} $$
C
$$ A \varepsilon_0\left[\frac{k_1}{t_1}+\frac{k_2}{t_2}+\frac{k_3}{t_3}\right] $$
D
$$ \frac{A \varepsilon_0}{\left[\frac{t_1}{k_1}+\frac{t_2}{k_2}+\frac{t_3}{k_3}\right]} $$
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In parallel plate capacitor, electric field between the plates is '$$E$$'. If the charge on the plates is '$$Q$$' then the force on each plate is

A
QE
B
$$\frac{\mathrm{QE}^2}{2}$$
C
$$\mathrm{QE}^2$$
D
$$\frac{\mathrm{QE}}{2}$$
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