Electrostatics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 48 - 52 of 109

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Passage

An electric dipole (AB) consisting of two particles of equal and opposite charge and same mass is released in an electric field. In the figure field lines are without considering effect of field of dipole.

Dipole in electric field

Dipole in Electric Field

An electric dipole (AB) consisting of two particles of equal and opposite charge and same mass is released in an electric field

Question number: 48 (2 of 2 Based on Passage) Show Passage

» Electrostatics » Electric Dipole

MCQ▾

Question

Angular acceleration of the dipole, immediately after it is released

Choices

Choice (4) Response

a.

is anticlockwise

b.

is clockwise

c.

Cannot be determined from the given information.

d.

is zero

Question number: 49

» Electrostatics » Electric Potential

Assertion-Reason▾

Assertion (Ꭺ)

Electric potential of earth is taken to be zero as a reference.

Reason (Ꭱ)

The electric field produced by earth in surrounding space is zero.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 50

» Electrostatics » Electric Potential

MCQ▾

Question

In the rectangle shown below, the two corners have charges q 1 = -5 μC and q 2 = +2.0 μC. The work done by external agent in moving a charge q = +3.0 μC slowly from B to A is

(Take l/4π 0 = 10 10 Nm 2 /C 2)

Rectangular figure with charges given

Rectangular Figure With Charges Given

In figure the rectangular having two charges at corners q1=-5 μC and q2 =+2.0 μC.

Choices

Choice (4) Response

a.

5.5 J

b.

2.8 J

c.

3.5 J

d.

4.5 J

Question number: 51

» Electrostatics » Electric Potential

MCQ▾

Question

The displacement of a charge Q in the electric field . The work done is,

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 52

» Electrostatics » Electric Field Due to a Point Charge

MCQ▾

Question

Electric lines of force at negative point charge are

Choices

Choice (4) Response

a.

Radial, inward

b.

Circular, anticlockwise

c.

Radial, outward

d.

Circular, clockwise

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