Question Regarding electric field

In summary, dipole moment exists in polar molecules even without an external electric field. This means that the molecules have a permanent separation of positive and negative charges, making them polar. This definition does not include an external field as a variable, although it may be needed to detect the presence of a moment. In contrast, magnetic moments in ferromagnetic materials tend to align parallel to each other due to the spins of the molecules.
  • #1
harishjee.com
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In polar molecules, dipole moment exists even in the absence of an external electric field.

please tell me it is true or false
 
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  • #2
what is your definition of a dipole moment? does this defn include an external field as an variable? you may need a field to detect a presence of a moment but do u need it to define it in the first place? You need to think about these issues...
 
  • #3
Why do magnetic moments arising due to spins of ferromagnetic materials, tend to align parallel to each other?
 
  • #4
harishjee.com said:
In polar molecules, dipole moment exists even in the absence of an external electric field.
Yes. That's why they're called polar molecules!
 
  • #5
can u understand me about dipole moment with or without electric field.
 
  • #6
harishjee.com said:
can u understand me about dipole moment with or without electric field.
Yes. Did you understand my answer? A permanent dipole moment does not require an external electric field. Examples of highly polar molecules would be the alkali halides.
 

What is an electric field?

An electric field is a physical quantity that describes the strength and direction of the force exerted on a charged particle by other charged particles in its surroundings. It is represented by a vector and is measured in units of newtons per coulomb (N/C).

How do you calculate the electric field?

The electric field at a point is calculated by dividing the force exerted on a test charge by the magnitude of the test charge. This can be represented by the equation E = F/q, where E is the electric field, F is the force, and q is the charge.

What is the difference between an electric field and an electric potential?

An electric field is a measure of the force exerted on a charged particle, while electric potential is a measure of the energy that a charged particle has due to its position in an electric field. Electric potential is measured in units of volts (V).

How does the presence of a charged object affect the electric field in its surroundings?

The presence of a charged object creates an electric field in its surroundings. This electric field can influence the motion and behavior of other charged particles in its vicinity. The strength and direction of the electric field will depend on the magnitude and location of the charged object.

What are some real-world applications of electric fields?

Electric fields have many practical applications, such as in electronic devices like computers and cell phones, in medical equipment like MRI machines, and in power generation and transmission. They are also used in electrostatic precipitators to remove particulate matter from industrial exhaust, and in particle accelerators for scientific research.

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