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Questions and Answers
What is the purpose of a dielectric material in an electric field?
What is the purpose of a dielectric material in an electric field?
- To allow the electric field to pass through (correct)
- To block the electric field
- To absorb the electric field
- To create an electric field
In what type of material is the electric permittivity (ER) equal to zero?
In what type of material is the electric permittivity (ER) equal to zero?
- Semiconductors
- Insulators
- Metals (correct)
- Dielectric materials
What is the nature of an electric dipole?
What is the nature of an electric dipole?
- It has only positive electric charges
- It consists of two positive charges
- It consists of two negative charges
- It has a separation between a positive and a negative electric charge (correct)
Which chapter in the course covers the topic of optical properties of materials?
Which chapter in the course covers the topic of optical properties of materials?
What is the function of field vectors and polarization in electrical properties?
What is the function of field vectors and polarization in electrical properties?
In which type of material can electric fields not pass through?
In which type of material can electric fields not pass through?
What is the formula for the electric dipole moment (p)?
What is the formula for the electric dipole moment (p)?
How is the dipole moment (p) oriented in relation to the charges?
How is the dipole moment (p) oriented in relation to the charges?
What happens when an electric dipole is placed in an electric field?
What happens when an electric dipole is placed in an electric field?
What is the relationship between surface charge density (D) and the electric field in a dielectric material?
What is the relationship between surface charge density (D) and the electric field in a dielectric material?
In a dielectric, what does the term P represent in the expression for charge density (D)?
In a dielectric, what does the term P represent in the expression for charge density (D)?
What occurs when very high electric fields are applied across dielectric materials?
What occurs when very high electric fields are applied across dielectric materials?
What is the phenomenon of material failure due to high electric fields known as?
What is the phenomenon of material failure due to high electric fields known as?
What does dielectric strength quantify?
What does dielectric strength quantify?
What happens when a dielectric material is present within the plates of a capacitor?
What happens when a dielectric material is present within the plates of a capacitor?
What is the charge density between the plates of a capacitor when a dielectric material is present?
What is the charge density between the plates of a capacitor when a dielectric material is present?
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