Question

Consider the following statements regarding electric dipole:

1. The SI unit for electric dipole moment is coulomb/meter

2. Its magnitude is equal to the product of the charge and the distance between the charges.

3. Its magnitude decreases with increasing distance between charges

Which of the above statement(s) is/are correct

1. 1, 3 only
2. 1 only
3. 2 only
4. 3 only

Answer 1

Correct Answer - Option 3 : 2 only

Electric dipole moment:

• The electric dipole moment is a measure of the separation of positive and negative electrical charges.
• It consists of two equal and opposite charges that are infinitely close together.
• Its magnitude is equal to the product of the charge and the distance between the charges and having direction from the negative to the positive charge along the line between the charges.

 

Electric dipole moment p = qd

Where,

q = charge (Coulomb)

d = distance between charges (meter)

The SI unit for electric dipole moment is coulomb-meter