CUET LEVEL II - NEET MOCK TEST - 2 (PHYSICS)

What is the electrostatic force between two protons, in comparison With the electrostatic force between two electrons?

• greater

• smaller

• zero

• same

Tags

ch 1

If electric flux through a closed surface is zero. What does it mean?

• the net charge inside the surface is zero.

• the electric field is necessarily zero at all points on the surface.

• no charge exists inside the surface.
  

• no charge exists outside the surface.

Tags

ch 1

How does Static electricity is produced?

• induction only

• friction

• chemical reaction only

• friction and induction both.

When distance between two charges is reduced to one-half of the original distance, the force between them will remain the same if one of the charges is made:

• one fourth

• four times

• double

• one-halftimes

A unit Coulomb charge is one which when placed in air at a distance of 1 m from an equal and similar charge repel it with a force of

• 9 × 10⁹ N

• 1 N

• 1 dyne

• none

When two charged spheres are connected with a wire, How is the electric charge on them shared?

• inversely as their capacity

• equally

• in proportional to their capacity

• None

An electric dipole of moment p is placed in the position of stable equilibrium in a uniform electric field E⃗ . The couple required to rotate it through an angle 6 the initial position is

• -PE cos θ

• PE tan θ

• PE cos θ

• PE sin θ

Two point charges each of 20 µC are placed 50 cm apart in air. What is the electric field intensity at the mid point on the line joining the centre of two point charges?

• 5 × 10⁶ NC^-1
  

• 18 × 10⁶ NC^-1

• zero

• 19 × 10⁶ NC^-1

Two charges 10 pC and 5 pC are placed 20 cm apart. What the ratio of Coulomb’s force is experienced by them?

• 2 : 5

• 1 : 1
  

• √3 = √7

• 2 = √7

The figure here shows electric field lines. The electric field strength at P₁ is E₁ and that at P₂ is E₂ If distance between P₁, P₂ is r, then which of the following statement is true?

• E₁ > E₂
  

• E₁ < E₂
  

• E₂ = rE₁

• E₂ = E₁/r²