Electrostatics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 57 - 61 of 109

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Question number: 57

» Electrostatics » Electric Field

MCQ▾

Question

Figure shows the electric lines of force emerging from a charged body. If the electric field at A and B are E A and E B respectively and if the distance between them is r then

Non-uniform electric field

Non-Uniform Electric Field

Non-uniform elecric force lines. At A point region lines are more dance than B point region.

Choices

Choice (4) Response

a.

E A > E B

b.

c.

d.

E A < E B

Question number: 58

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

Two equal charges q are placed at a distance of 2a and a third charge -2q is placed at the midpoint. The potential energy of the system is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 59

» Electrostatics » Electric Potential

MCQ▾

Question

Ten electrons are equally spaced and fixed around a circle of radius R. Relative to V = 0 at infinity, the electrostatic potential V and the electric field E at the center C are

Choices

Choice (4) Response

a.

V ≠ 0 and

b.

V = 0 and

c.

V = 0 and

d.

V ≠ 0 and

Question number: 60

» Electrostatics » Capacitors

MCQ▾

Question

There is an air filled l pF parallel plate capacitor. When the plate separation is doubled and the space is filled with wax, the capacitance increases to 2pF. The dielectric constant of wax is

Choices

Choice (4) Response

a.

6

b.

YO

8

c.

4

d.

2

Question number: 61

» Electrostatics » Capacitors

MCQ▾

Question

In the figure a capacitor is filled with dielectrics K 1, K 2 and K 3. The resultant capacitance is

Capacitor filled with dielectrics

Capacitor Filled with Dielectrics

In figure a capacitor filled with dielectrics K1, K2 and K3.

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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