Home
Class 12
PHYSICS
STATEMENT-1 :The direction of electric d...

STATEMENT-1 `:`The direction of electric dipole moment is directed from `+q` to -q
STATEMENT -2 `:` Electric field at any point in space may be perpendicular to the dipole moment.
STATEMENT-3 `:` A dipole experiences maximum torques at the position where potential energy is zero.

A

T F T

B

T F F

C

F T F

D

F T T

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements given in the question, we will evaluate each statement one by one and determine their validity. ### Step 1: Evaluate Statement 1 **Statement 1:** The direction of electric dipole moment is directed from +q to -q. **Analysis:** The electric dipole moment \( \vec{p} \) is defined as the product of the charge \( q \) and the displacement vector \( \vec{d} \) that points from the negative charge to the positive charge. Therefore, the correct direction of the dipole moment is from -q to +q, not from +q to -q. **Conclusion:** Statement 1 is **false**. ### Step 2: Evaluate Statement 2 **Statement 2:** Electric field at any point in space may be perpendicular to the dipole moment. **Analysis:** The electric field generated by a dipole can indeed be oriented in various directions relative to the dipole moment. There are positions in space where the electric field can be perpendicular to the dipole moment. For example, at certain points along the perpendicular bisector of the dipole, the electric field can be perpendicular to the dipole moment vector. **Conclusion:** Statement 2 is **true**. ### Step 3: Evaluate Statement 3 **Statement 3:** A dipole experiences maximum torque at the position where potential energy is zero. **Analysis:** The potential energy \( U \) of a dipole in an electric field is given by the formula \( U = -\vec{p} \cdot \vec{E} = -pE \cos \theta \), where \( \theta \) is the angle between the dipole moment and the electric field. The potential energy is zero when \( \cos \theta = 0 \), which occurs at \( \theta = \frac{\pi}{2} \) (90 degrees). At this angle, the torque \( \tau \) is given by \( \tau = \vec{p} \times \vec{E} = pE \sin \theta \). The torque is maximum when \( \sin \theta = 1 \), which occurs when \( \theta = 90^\circ \). Thus, the statement is correct. **Conclusion:** Statement 3 is **true**. ### Final Summary - Statement 1: **False** - Statement 2: **True** - Statement 3: **True** ### Correct Option The correct option based on the evaluations is that Statement 1 is false, while Statements 2 and 3 are true. ---
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise SECTION-I Subjective Type Questions|5 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise SECTION-J Aakash Challengers Questions|5 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise SECTION-G(INTEGER ANSWER TYPE QUESTIONS)|8 Videos
  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos
  • GRAVITATION

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D (ASSERTION-REASON TYPE QUESTIONS)|16 Videos

Similar Questions

Explore conceptually related problems

State the following statements as Ture or False. a. Electric potential at any point on the bisector of a dipole is zero. b. A dipole experences maximum torque at the positive where potential energy is zero.

The electric field at a point on equatorial of a dipole and direction of the dipole moment

In a uniform electric field,when dipole experiences maximum torque,its potential energy .???

A short electric dipole is placed in the electric field due to a point charge. Then (A) The dipole must experience a force (B) The dipole may experience a force (C) The dipole must experience a torque (D) The dipole may experience a torque

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. the energy required to rotate the dipole by 90^(@) is

At what angle of electric dipole moment with uniform electric field, potential energy is maximum ?

An electric dipole placed withits axis in the direction of a unifrom electric field experience