1
MHT CET 2021 20th September Evening Shift
+1
-0

A parallel plate air capacitor is charged upto 100 V. A plate 2 mm thick is inserted between the plates. Then to maintain the same potential difference, the distance between the plates is increased by 1.6 mm. The dielectric constant of the thick plate is

A
4
B
5
C
2
D
3
2
MHT CET 2021 20th September Morning Shift
+1
-0

A parallel plate capacitor filled with oil of a dielectric constant 3 between the plates has capacitance 'C'. If the oil is removed, then the capacitance of the capacitor will be

A
$$\mathrm{\frac{C}{\sqrt3}}$$
B
3C
C
$$\sqrt3$$C
D
$$\mathrm{\frac{C}{3}}$$
3
MHT CET 2020 16th October Evening Shift
+1
-0

Five capacitors each of capacity $$C$$ are connected as shown in figure. If their resultant capacity is $$2 \mu \mathrm{F}$$, then the capacity of each condenser is

A
5 $$\mu$$F
B
2 $$\mu$$F
C
2.5 $$\mu$$F
D
10 $$\mu$$F
4
MHT CET 2020 16th October Morning Shift
+1
-0

The capacitance of a parallel plate capacitor with air as medium is $$3 \mu \mathrm{F}$$. With the introduction of a dielectric medium between the plates, the capacitance becomes $$15 \mu \mathrm{F}$$. The permittivity of the medium in $$\mathrm{SI}$$ unit is $$[\varepsilon_0=8.85 \times 10^{-12} \mathrm{SI}$$ unit]

A
$$8.845 \times 10^{-11}$$
B
$$0.4425 \times 10^{-10}$$
C
15
D
5
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