1
COMEDK 2024 Morning Shift
+1
-0

A parallel plate capacitor is filled by a dielectric whose relative permittivity varies with the applied voltage (U) as $$\epsilon=2 U$$. A similar capacitor with no dielectric is charged to $$U_0=78 \mathrm{~V}$$. It is then connected to the uncharged capacitor with the dielectric. Find the final voltage on the capacitors.

A
6V
B
8V
C
2V
D
4V
2
COMEDK 2023 Morning Shift
+1
-0

A capacitor of capacity $$2 ~\mu \mathrm{F}$$ is charged upto a potential $$14 \mathrm{~V}$$ and then connected in parallel to an uncharged capacitor of capacity $$5 ~\mu \mathrm{F}$$. The final potential difference across each capacitor will be

A
6 V
B
4 V
C
8 V
D
14 V
3
COMEDK 2023 Morning Shift
+1
-0

A dielectric of dielectric constant $$K$$ is introduced such that half of its area of a capacitor of capacitance $$C$$ is occupied by it. The new capacity is

A
$$2 C$$
B
$$\frac{C}{2}$$
C
$$\frac{(1+K) C}{2}$$
D
$$2 C(1+K)$$
4
COMEDK 2023 Morning Shift
+1
-0

In the figure below, the capacitance of each capacitor is $$3 \mu \mathrm{F}$$. The effective capacitance between $$A$$ and $$B$$ is

A
$$\frac{3}{4} \mu \mathrm{F}$$
B
$$3 \mu \mathrm{F}$$
C
$$6 \mu \mathrm{F}$$
D
$$5 \mu \mathrm{F}$$
EXAM MAP
Medical
NEET