A dipole is placed in a uniform electric field with its axis parallel to the field. It experiences

neither a net force nor a torque

12 - Physics - Unit 1 - Electro Statics

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12 - Physics - Unit 1 - Electro Statics

The electrostatic force between two point charges kept at a distance d apart, in a medium ε_r = 6, is 0.3 N. The force between them at the same separation in vacuum is

Elecric field intensity is 400 V m⁻¹ at a distance of 2 m from a point charge. It will be 100 V m⁻¹ at a distance?

Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them the electric field is zero?

A dipole is placed in a uniform electric field with its axis parallel to the field. It experiences

The work done in moving 500 μC charge between two points on equipotential surface is

Which of the following quantities is scalar?

The capacitance of a parallel plate capacitor increases from 5 μf to 60 μf when a dielectric is filled between the plates. The dielectric constant of the dielectric is

A hollow metal ball carrying an electric charge produces no electric field at points

A glass rod rubbed with silk acquires a charge of . The number of electrons it has gained or lost (1) (gained) (2) (lost) (3) (lost) (4) (lost)

If a point lies at a distance x from the midpoint of the dipole, the electric potential at this point is proportional to (1) (2) (3) (4)

Four charges +q, +q, −q and –q respectively are placed at the corners A, B, C and D of a square of side a. The electric potential at the center O of the square is (1) (2) (3) (4) zero

Electric potential energy (U) of two point charges is (1) (2) (3) pE cos θ (4) pE sin θ

The unit of permittivity is (1) C² N⁻¹ m⁻² (2) N m² C⁻² (3) H m⁻¹ (4) N C⁻² m⁻²

The number of electric lines of force originating from a charge of 1 C is (1) (2) (3) (4)

The electric field outside the plates of two oppositely charged plane sheets of charge density σ is (1) (2) (3) (4) zero

12 - Physics - Unit 1 - Electro Statics

The electrostatic force between two point charges kept at a distance d apart, in a medium εr = 6, is 0.3 N. The force between them at the same separation in vacuum is

Elecric field intensity is 400 V m−1 at a distance of 2 m from a point charge. It will be 100 V m−1 at a distance?

Two point charges +4q and +q are placed 30 cm apart. At what point on the line joining them the electric field is zero?

A dipole is placed in a uniform electric field with its axis parallel to the field. It experiences

The work done in moving 500 μC charge between two points on equipotential surface is

Which of the following quantities is scalar?

The capacitance of a parallel plate capacitor increases from 5 μf to 60 μf when a dielectric is filled between the plates. The dielectric constant of the dielectric is

A hollow metal ball carrying an electric charge produces no electric field at points

A glass rod rubbed with silk acquires a charge of . The number of electrons it has gained or lost (1) (gained) (2) (lost) (3) (lost) (4) (lost)

If a point lies at a distance x from the midpoint of the dipole, the electric potential at this point is proportional to (1) (2) (3) (4)

Four charges +q, +q, −q and –q respectively are placed at the corners A, B, C and D of a square of side a. The electric potential at the center O of the square is (1) (2) (3) (4) zero

Electric potential energy (U) of two point charges is (1) (2) (3) pE cos θ (4) pE sin θ

The unit of permittivity is (1) C2 N−1 m−2 (2) N m2 C−2 (3) H m−1 (4) N C−2 m−2

The number of electric lines of force originating from a charge of 1 C is (1) (2) (3) (4)

The electric field outside the plates of two oppositely charged plane sheets of charge density σ is (1) (2) (3) (4) zero

The electrostatic force between two point charges kept at a distance d apart, in a medium ε_r = 6, is 0.3 N. The force between them at the same separation in vacuum is

Elecric field intensity is 400 V m⁻¹ at a distance of 2 m from a point charge. It will be 100 V m⁻¹ at a distance?

The unit of permittivity is (1) C² N⁻¹ m⁻² (2) N m² C⁻² (3) H m⁻¹ (4) N C⁻² m⁻²