MHT CET 2026 20th April Morning Shift | Capacitor Question 1 | Physics

In a parallel plate air capacitor of plate separation '$d$', a dielectric slab of thickness '$t$' is introduced between the plates. The capacitance becomes one-third of the original value. The dielectric constant of the slab will be

$\dfrac{t}{d + t}$

$\dfrac{t}{2d + t}$

$\dfrac{t}{d - 2t}$

$\dfrac{2t}{2d - t}$

MHT CET 2026 20th April Morning Shift

MCQ (Single Correct Answer)

-0

A parallel plate air capacitor having area of each plate '$A$' and the distance between the plates '$d$' has uniform electric field E in the space between the plates. The energy stored in the capacitor is ($\epsilon_0$ = permittivity of free space.)

$\dfrac{1}{2}\epsilon_0 E^2$

$\dfrac{1}{2}A\epsilon_0 E$

$\dfrac{1}{2}A\epsilon_0 E^2 d$

$\dfrac{1}{2}A\epsilon_0^2 E\cdot d$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

The potential difference across the 4 capacitor in the following circuit is

MHT CET 2025 5th May Evening Shift Physics - Capacitor Question 1 English

3.4 V

4.6 V

5.4 V

6.2 V

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it is Q coulomb. When potential across the capacitor is reduced by $\mathrm{V}_1$ volt, the charge stored in it becomes $\mathrm{Q}_1$ coulomb. The potential V is

$\frac{\mathrm{QV}_1}{\mathrm{Q}-\mathrm{Q}_1}$

$\frac{Q_1 V_1}{Q+Q_1}$

$\frac{Q_1}{Q}$

$\frac{Q}{Q_1}$

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