Question

Important questions for board class 12 physics chapter 1

Answer 1

Answer:

Here You go....

Explanation:

Question 1.

Which orientation of an electric dipole in a uniform electric field would correspond to stable equilibrium ? (All India 2008)

Answer:

When dipole moment vector is parallel to electric field vector

P→∥E→

 

Question 2.

Define the term electric dipole moment of a dipole. State its S.I. unit

Answer:

τ = OE sin θ

If E = 1 unit, θ = 90°, then τ = P

Dipole moment may be defined as the torque acting on an electric dipole, placed perpendicular to a uniform electric dipole, placed perpendicular to a uniform electric field of unit strength.

or Strength of electric dipole is called dipole moment.

|P→|=q|2a|

∴ SI unit is Cm.