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Which, among the following, do not have any unit?

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in Basic Electrical Engineering by (88.7k points)
Which, among the following, do not have any unit?

(a) Absolute permittivity

(b) Relative permittivity

(c) Actual permittivity

(d) Both absolute and relative permittivity

The question was asked during a job interview.

My doubt is from Relative Permittivity topic in division Capacitance and Capacitors of Basic Electrical Engineering

1 Answer

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Right answer is (b) Relative permittivity

Explanation: Relative permittivity is the ratio of actual permittivity to the relative permittivity of the medium. Since it is a ratio, and we know that a ratio does not have any unit, relative permittivity does not have any unit.

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