1
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A parallel plate capacitor has plate area $40 \mathrm{~cm}^2$ and plate separation 2 mm . The space between the plates is filled with a dielectric medium of thickness 1 mm and dielectric constant 5 . The capacitance of the system is ( $\varepsilon_0=$ permittivity of vacuum)

A
$24 \varepsilon_0 \mathrm{~F}$
B
$\frac{3}{10} \varepsilon_0 \mathrm{~F}$
C
$\frac{10}{3} \varepsilon_0 \mathrm{~F}$
D
$10 \varepsilon_0 \mathrm{~F}$
2
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A parallel plate capacitor is charged and then isolated. If the separation between the plates is increased, which one of the following statement is NOT correct?

A
Charge remains constant after it is isolated.
B
Potential difference across the plates decreases.
C
Potential difference across the plates increases.
D
Capacitance of capacitor decreases.
3
MHT CET 2024 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two circular metal plates each of radius ' $r$ ' are kept parallel to each other distance ' $d$ ' apart. The capacitance of the capacitor formed is ' $\mathrm{C}_1$ '. If the radius of each of the plates is increased to $\sqrt{2}$ times the earlier radius and their distance of separation decreased to half the initial value, the capacitance now becomes ' $\mathrm{C}_2$ '. The ratio of the capacitances $\mathrm{C}_1: \mathrm{C}_2$ is

A
$1: 1$
B
$1: 2$
C
$1: 4$
D
$4: 1$
4
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The amount of work done in increasing the voltage across the plates of a capacitor form 5 V to 10 V is ' W '. The work done in increasing it from 10 V to 15 V will be (nearly)

A
0.6 W
B
W
C
1.25 W
D
1.67 W
MHT CET Subjects
EXAM MAP