Electrostatics-Electric Flux (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 3 of 4

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Question number: 1

» Electrostatics » Electric Flux

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MCQ▾

Question

A solid sphere S 1 is connected to a charge reservoir through a heater H as shown in figure.

Two Solid Spheres given in figure

Two Solid Spheres Given in Figure

Two solid spheres connected with heater.

Flux through a closed spherical surface around S l is given by = a t 2 where a is a constant and t is time in seconds. If resistance of heater is R then select correct statements

(1) Power consumed by heater will be 4α 2 ϵ02 Rt 2.

(2) Electric flux through a closed spherical surface around S 2 will be - α t 2.

(3) Rate of change of electric flux through a closed spherical surface around S 2 will be -2α t

(4) All of the above are correct.

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

Choices

Choice (4) Response

a.

2 and 4

b.

1 and 3

c.

1,2 and 3

d.

1 and 2

Question number: 2

» Electrostatics » Electric Flux

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MCQ▾

Question

4 charge q is placed at the center of a cube. Then the flux passing through one face of cube will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 3

» Electrostatics » Electric Flux

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MCQ▾

Question

If over a surface, then

Choices

Choice (4) Response

a.

All charges must necessarily be outside the surface.

b.

The electric field inside the surface and on it is zero.

c.

The number of flux lines entering the surface must be equal to the number of flux lines leaving it.

d.

Both a. and c. are correct

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