GATE ECE 1999 | Transmission Lines Question 43 | Electromagnetics

GATE ECE 1999

MCQ (Single Correct Answer)

-0.6

In air, a lossless transmission line of length 50 cm with $$L = 10\,\mu H/m,\,\,C = 40\,\,pF/m$$ is operated at 25 MHz. Its electrical path length is

0.5 meters

$$\lambda $$ meters

$$\pi /2$$ radians

180 degree

GATE ECE 1999

MCQ (Single Correct Answer)

-0.6

In a twin-wire transmission line in air, the adjacent voltage maxima are at 12.5 cm and 27.5. The operating frequency is

300 MHz

1 GHz

2 GHz

6.28 GHz

GATE ECE 1994

True or False

-0

If a pure resistance load, when connected to a lossless 75-ohm line, produces a VSWR of 3 on the line, then the load impedance can only be 25 ohms.

TRUE

FALSE

GATE ECE 1993

MCQ (Single Correct Answer)

-0.6

Consider a transmission line of characteristic impedance 50 ohm. Let it be terminated at one end by ( + j50) ohm. The VSWR produced by it in the transmission line will be

+ 1

$$\infty $$

+ j

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