(a) Describe what happens to an insulating material, at an atomic level, when an external electric field is applied to it. Hence define what is meant by relative permittivity, &r.
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![(a) Describe what happens to an insulating material, at an atomic level, when an
external electric field is applied to it. Hence define what is meant by relative
permittivity, &r.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8505b2fa-cd38-4e95-8b0b-c37d98f8d028%2F57371e3e-2966-4745-8574-64df3edb733c%2Frqxfhg_processed.png&w=3840&q=75)
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