Electrostatics-Capacitors (NEET Physics): Questions 1 - 4 of 28

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Question number: 1

» Electrostatics » Capacitors

MCQ▾

Question

If L, C and R represent inductance, capacitance and resistance respectively, then which of the following does not represent dimensions of frequency?

Choices

Choice (4) Response
a.

CL

b.

RL

c.

1RC

d.

1LC

Question number: 2

» Electrostatics » Capacitors

MCQ▾

Question

A parallel plate air condenser is connected with a battery. Its charge, potential difference, electric field and energy are Q 0, V 0, E 0, and U 0, respectively. In order to fill the complete space between the plates a dielectric slab is inserted, the battery is still connected. Now the corresponding values Q, V, E and U are in relation with the initially stated as

(1) V > V 0

(2) Q > Q 0

(3) E > E 0

(4) U > U 0

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response
a.

1 and 3 are correct

b.

2 and 4 are correct

c.

1, 2 and 3 are correct

d.

1 and 2 are correct

Question number: 3

» Electrostatics » Capacitors

Assertion-Reason▾

Assertion (Ꭺ)

Circuit containing capacitors should be handled cautiously even when there is no current.

Reason (Ꭱ)

The capacitors are very delicate and so quickly breakdown.

Choices

Choice (4) Response
a. Ꭺ is true but Ꭱ is false
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are false

Question number: 4

» Electrostatics » Capacitors

MCQ▾

Question

Between the plates of a parallel plate condenser, a plate of thickness t 1 and dielectric constant K 1 is placed. In the rest of the space, there is another plate of thickness t 2, and dielectric constant K 2. The potential difference across the condenser will be,

Choices

Choice (4) Response
a.

Qϵ0A(t1K1+t2K2)

b.

ϵ0QA(K1t1+K2t2)

c.

QAϵ0(t1K1+t2K2)

d.

QAϵ0(K1t1+K2t2)

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