AP EAPCET 2025 - 21st May Morning Shift | Capacitor Question 13 | Physics

A capacitor of capacitance $2 \mu \mathrm{~F}$ is charged to 50 V and then disconected from the source. Later the gap between the plates of the capacitor is filled with a dielectric material. If the energy stored in the capacitor is decreased by $25 \%$ of its initial value, then the dielectric constant of the dielectric material is

$\frac{2}{3}$

$\frac{4}{3}$

$\frac{3}{4}$

$\frac{3}{2}$

AP EAPCET 2024 - 22th May Evening Shift

MCQ (Single Correct Answer)

-0

The space between the plates of a parallel plate capacitor is halved and a dielectric medium of relative permittivity 10 is introduced between the plates. The ratio of the final and initial capacitances of the capacitor is

$1 / 10$

$1 / 20$

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

Eight capacitors each of capacity $2 \mu \mathrm{~F}$ are arranged as shown in figure. The effective capacitance between $A$ and $B$ is

AP EAPCET 2024 - 22th May Morning Shift Physics - Capacitor Question 15 English

$10 \mu \mathrm{~F}$

$12 \mu \mathrm{~F}$

$16 \mu \mathrm{~F}$

$4 \mu \mathrm{~F}$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

When a parallel plate capacitor is charged up to 95 V , its capacitance is $C$. If a dielectrtic slab of thickness 2 mm is inserted between plates and distance between the plates is increased by 1.6 mm such that the same potential difference is maintained. The dielectric constant of the material (slab) is

2.4

4.5

5.0

9.0

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