Prateek Asked :
Q. In free space, which parameter will be unity?
A. Permittivity
B. Absolute permittivity
C. Relative permittivity
D. Permeability
Dapzoi
Answer: C
Explanation: The relative permittivity is a constant for a particular material. It is unity for free space or air. The absolute permittivity is a constant given by 8.854 x 10^-12 C/m2.
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