The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and Zo respectively. The velocity of a travelling wave on the transmission line is
(a) Z0C
(b) 1/Z0C
(c) Z0/C
(d) C/Z0
Ans :- (b)
Explanation
As given line is lossless, Z_0=\sqrt{\frac LC}
Z_0^2=\frac LC L=Z_0^2C v=\frac1{\sqrt{LC}}=\frac1{\sqrt{\left(Z_0^2C\right)(C)}}=\frac1{Z_0C}