Physics - Mock Test 22

Question 211

A cube of a metal is given a positive charge Question: For this system, which of the following statements is true

A) Electric potential at the surface of the cube is zero B) Electric potential within the cube is zero C) Electric field is normal to the surface of the cube D) Electric field varies within the cube

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Question 212

A cube of a metal is given a positive charge Question: For this system, which of the following statements is true

A) Electric potential at the surface of the cube is zero B) Electric potential within the cube is zero C) Electric field is normal to the surface of the cube D) Electric field varies within the cube

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Question 213

Which of the following quantities do not depend on the choice of zero potential or zero potential energy

A) Potential at a point B) Potential difference between two points C) Potential energy of a two-charge system D) None of these

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Question 214

Which of the following quantities do not depend on the choice of zero potential or zero potential energy

A) Potential at a point B) Potential difference between two points C) Potential energy of a two-charge system D) None of these

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Question 215

It becomes possible to define potential at a point in an electric field because electric field

A) is a conservative field B) is a non-conservative field C) is a vector field D) obeys principle of superposition

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Question 216

It becomes possible to define potential at a point in an electric field because electric field

A) is a conservative field B) is a non-conservative field C) is a vector field D) obeys principle of superposition

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Question 217

The electric potential inside a conducting sphere

A) increases from centre to surface B) decreases from centre to surface C) remains constant from centre to surface D) is zero at every point inside

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Question 218

The electric potential inside a conducting sphere

A) increases from centre to surface B) decreases from centre to surface C) remains constant from centre to surface D) is zero at every point inside

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Question 219

In a region of constant potential

A) the electric field is uniform B) the electric field is zero C) the electric field shall necessarily change if a charge is placed outside the region D) None of these

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Question 220

In a region of constant potential

A) the electric field is uniform B) the electric field is zero C) the electric field shall necessarily change if a charge is placed outside the region D) None of these

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