An electric dipole isa)a pair of electric charges of equal magnitude q separated by a distance db)a pair of electric charges of equal magnitude q but positive sign, separated by a distance dc)a pair of electric charges of equal magnitude q but opposite sign, separated by a distanced)a pair of electric charges of equal magnitude q but negative sign, separated by a distance dCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some (usually small) distance. A permanent electric dipole is called an electret

Answer

An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some (usually small) distance. A permanent electric dipole is called an electret.

Answer

Understanding Electric Dipoles
An electric dipole consists of two equal and opposite charges separated by a certain distance. Let's break down the concept for clarity.
Definition of an Electric Dipole
- An electric dipole is defined as a pair of charges:
- One charge is positive (+q)
- The other charge is negative (-q)
- These charges are separated by a distance 'd'.
Characteristics of Electric Dipoles
- Equal Magnitude: The charges must have the same absolute value (q).
- Opposite Sign: One charge is positive, and the other is negative, which is crucial for the dipole's behavior in an electric field.
- Separation Distance: The distance 'd' between these two charges is vital as it determines the dipole moment.
Why Option 'C' is Correct
- Option 'C' accurately describes the essential characteristics of an electric dipole:
- It specifies that the charges are of equal magnitude but opposite sign, which is necessary for defining an electric dipole.
- Contrast with Other Options:
- Option 'A': Both charges are of equal magnitude, but they lack the necessary opposite signs.
- Option 'B': Both charges are positive, which does not constitute a dipole.
- Option 'D': Both charges are negative, again failing to create a dipole.
Conclusion
In summary, an electric dipole is fundamentally defined by a pair of equal and opposite charges. This unique arrangement enables the dipole to interact with electric fields, creating a significant impact in various applications in physics and engineering.

Top Courses for Class 12

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams