1
KCET 2023
+1
-0

A parallel plate capacitor of capacitance $$C_1$$ with a dielectric slab in between its plates is connected to a battery. It has a potential difference $$V_1$$ across its plates. When the dielectric slab is removed, keeping the capacitor connected to the battery, the new capacitance and potential difference are $$C_2$$ and $$V_2$$ respectively, Then

A
$$V_1=V_2, C_1 < C_2$$
B
$$V_1 > V_2, C_1 > C_2$$
C
$$V_1 < V_2, C_1 > C_2$$
D
$$V_1=V_2, C_1 > C_2$$
2
KCET 2022
+1
-0

A parallel place capacitor is charged by connecting a $$2 \mathrm{~V}$$ battery across it. It is then disconnected from the battery and a glass slab is introduced between plates. Which of the following pairs of quantities decrease?

A
Potential difference and energy stored
B
Energy stored and capacitance
C
Capacitance and charge
D
Charge and potential difference
3
KCET 2021
+1
-0

If a slab of insulating material (conceptual). $$4 \times 10^{-3} \mathrm{~m}$$ thick is introduced between the plates of a parallel plate capacitor, the separation between the plates has to be increased by $$3.5 \times 10^{-3} \mathrm{~m}$$ to restore the capacity to original value. The dielectric constant of the material will be

A
6
B
8
C
10
D
12
4
KCET 2021
+1
-0

Eight drops of mercury of equal radii combine to form a big drop. The capacitance of a bigger drop as compared to each smaller drop is

A
2 times
B
8 times
C
4 times
D
16 times
EXAM MAP
Medical
NEET