In the reported figure, a capacitor is formed by placing a compou… - Vidyadip

MCQ

In the reported figure, a capacitor is formed by placing a compound dielectric between the plates of parallel plate capacitor. The expression for the capacity of the said capacitor will be (Given area of plate $=A$ )

A
$\frac{25}{6} \frac{{K} \varepsilon_{0} {A}}{{d}}$
✓
$\frac{15}{34} \frac{{K\varepsilon}_{0} {A}}{{d}}$
C
$\frac{15}{6} \frac{{K} \varepsilon_{0} {A}}{{d}}$
D
$\frac{9}{6} \frac{{K} \varepsilon_{0} {A}}{{d}}$

✓

Answer

Correct option: B.

$\frac{15}{34} \frac{{K\varepsilon}_{0} {A}}{{d}}$

b
$\frac{1}{C_{eq}}=\frac{d}{K \varepsilon_{0} A}+\frac{2 d}{3 K \varepsilon_{0} A}+\frac{3 d}{5 K \varepsilon_{0} A}$

$C_{eq}=\frac{15 K \varepsilon_{0} A}{34 d}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 2. Electric potential and capacitance→2. Electric potential and capacitance — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The frequency of a photon, having energy $100eV$ is$(h = 6.6\,{10^{ - 34}}\,J{\rm{ - }}sec)$

Twenty seven drops of same size are charged at $220\, \mathrm{~V}$ each. They combine to form a bigger drop. Calculate the potential of the bigger drop. (In $\mathrm{~V}$)

An electric heater of resistance 6 ohm is run for 10 minutes on a 120 volt line. The energy liberated in this period of time is

A radioactive nucleus decays by two different processes. The half life for the first process is $10\, s$ and that for the second is $100 s$. the effective half life of the nucleus is close to$.....sec$

If a heavy nucleus has $N / Z$ ratio higher than that required for stability, then

Peltier co-efficient of a thermo couple is 2 nano volts. How much heat is developed at a junction if 2.5 amp current flows for 2 minute

A non-conducting solid sphere of radius R is uniformly charged. The magnitude of the electric field due to the sphere at a distance r from its centre

The internal resistance of a cell is the resistance of

Critical angle is that angle of incidence in the denser medium for which the angle of refraction in rarer medium is

The mutual inductance between two coils is $1.25$ $henry$. If the current in the primary changes at the rate of $80$ $ampere/second,$ then the induced $e.m.f$ in the secondary is......$V$