GATE Electronics and Communications (EC) 2012 Solved Paper

Question : 26 of 65

Marks: +1, -0

For a co-axial cable, inner diameter of outer conductor and diameter of inner conductor are 1 cm and 0.01 cm respectively. If dielectric constant

E _{r}

of the material filling in cable is 4, characteristic impedance of the co-axial cable is_____

Ω

Use

µ _{o} = 4π × 10^{−7}H\/ \text"m, E" _{o} = \;{10^{−9}}/{36π\;}F\/ m

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