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Which, among the following, do not have any unit?(a) Absolute permittivity(b) Relative permittivity(c) Actual permittivity(d) Both absolute and relative permittivityThe question was asked during a job interview.My doubt is from Relative Permittivity topic in division Capacitance and Capacitors of Basic Electrical Engineering

Answer»

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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