Electrostatics-Capacitors (NEET Physics): Questions 9 - 13 of 28

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Passage

Capacitor C 3 in the circuit is variable capacitor (its capacitance can be varied). Graph is plotted between potential differences V, (across capacitor C 1) versus C 3, Electric potential V 1 approaches on asymptote of 10 volts as C 3 → ∞

 Circuit Diagram - capacitors C2 and C3

Circuit Diagram - Capacitors C2 and C3

In figure, capacitors C2 and C3 connected in parallel and C1 connected in series. Capacitor C3 is variable capacitor.

Graph of V1→C3 for potential difference

Graph of V1→C3 for Potential Difference

Figure shows the curve between p. d (across capacitor C1) versus variable capacitor C3.

Question number: 9 (2 of 3 Based on Passage) Show Passage

» Electrostatics » Capacitors

MCQ▾

Question

The ratio of the capacitance C1/C2 will be

Choices

Choice (4) Response
a.

34

b.

43

c.

23

d.

32

Question number: 10 (3 of 3 Based on Passage) Show Passage

» Electrostatics » Capacitors

MCQ▾

Question

The ratio of energy stored in capacitor C 1 to that of total energy when C 3 → ∞ is

Choices

Choice (4) Response
a.

1

b.

Zero

c.

Data insufficient

d.

13

Question number: 11

» Electrostatics » Capacitors

MCQ▾

Question

Eight drops of mercury of equal radii possessing equal charges combine to form a big drop. Then the capacitance of bigger drop Compared to each individual small drop is

Choices

Choice (4) Response
a.

8 times

b.

2 times

c.

4 times

d.

32 times

Question number: 12

» Electrostatics » Capacitors

MCQ▾

Question

Separation between the plates of a parallel plate capacitor is d and the area of each plate is A. When a slab of material of dielectric constant k and thickness t (t < d) is introduced between the plates, its capacitance becomes

Choices

Choice (4) Response
a.

ϵ0Adt(1+1k)

b.

ϵ0Ad+t(11k)

c.

ϵ0Ad+t(1+1k)

d.

ϵ0Adt(11k)

Question number: 13

» Electrostatics » Capacitors

MCQ▾

Question

Two dielectric slabs of constant K 1 and K 2 have been filled in between the plates of a capacitor as shown below. What will be the capacitance of the capacitor?

Capacitor - Two dielectric slabs of constant K1 and K2

Capacitor - Two Dielectric Slabs of Constant K1 and K2

Two dielectric slabs of constant K1 and K2 have been filled in between the plates of a capacitor

Choices

Choice (4) Response
a.

2ϵ0Ad(K1×K2K1+K2)

b.

4ϵ0Ad(K1+K2K1K2)

c.

2ϵ0Ade(K1+K2)

d.

2ϵ0Ad(K1+K2K1K2)

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