For a transmission line with homogeneous dielectric the capacitance per unit length is 'c', the relative permittivity of the dielectric is ' r' and velocity of light in free space is 'v' the characteristic impedance z0 is equal to

• A. <img src="/_files/images/electronics-and-communication-engineering/electromagnetic-field-theory/197-254-1.png">
• B. <img src="/_files/images/electronics-and-communication-engineering/electromagnetic-field-theory/197-254-2.png">
• C. <img src="/_files/images/electronics-and-communication-engineering/electromagnetic-field-theory/197-254-3.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/electromagnetic-field-theory/197-254-4.png">