11. What will be permittivity of a medium which has dielectric constant 5.4? a) 4.78*10-11 C2N-1m-2 b) 8.85*10-10C2N-1m-2 c) 4.5*10-10C2N-1m-2 d) 3.2*10-11C2N-1m-2
Answer: a Explanation: εo=8.854*10-12C2N-1m-2. Therefore the permittivity will be 5.4*8.854*10-12C2N-1m-2 = 4.78*10-11C2N-1m-2. We know that permittivity of a medium is equal to its relative permittivity multiplied to the absolute permittivity of air. Air has relative permittivity =1.
