EC6503 Transmission Lines and Wave Guides Important questions
EC6503 Transmission Lines and Wave Guides Important questions Regulation 2013 Anna University free download. Transmission Lines and Wave Guides EC6503 Important questions pdf free download.
Sample EC6503 Transmission Lines and Wave Guides Important questions:
Unit I
1. Discuss in detail about inductance loading of telephone cables and derive the attenuation constant, phase constant and velocity of signal transmission for the uniformly loaded cable
2. Explain in detail about the reflection on a line not terminated in its characteristics impedance. (ec6503 transmission lines and wave guides important questions)
3. A distortion less transmission line has attenuation constant α=1.15×10ˉᶟ Np/m, and capacitance of 0.01 n F/m. the characteristic resistance L/C=50Ω find the resistance inductance and conductance per more of the line.
4. A transmission line operating at 500 MHz has Z₀=80Ω, α= 0.04 Np/m, β=1.5 rad/m. Find the line parameter series resistance (R Ω/m), series inductance (L H/m), shunt conductance (G mho/m) and capacitance between conductors (C F/m). (ec6503 transmission lines and wave guides important questions)
5. Derive expression for the attenuation and phase constant of transmission line in constant R,L,G and C.
6. Draw the L-type equivalent circuit model of a two-conductor transmission line and derive the transmission line equations.
7. discuss the theory of open and short circuited lines with voltage and current distribution diagram and also get the input impedance expression.
8. Derive the expression for the input impedance of a transmission line Hence obtain the input impedance for a loss less line (ec6503 transmission lines and wave guides important questions)
9. A transmission line operating at 10⁶ rad/s has α= 8 d B/m, β= 1 rad/m. and z₀= 60+ j40ohms, and is 2meter long. The line is connected to a source of 10 v, Zg=40ohms and terminated by a load of 20 + j50ohms. Determine the current at the middle of the line.
Unit II EC6503 Transmission Lines and Wave Guides Important questions
1. Explain the application of smith chart A 30 m long loss less transmission line with Z0=50ohms operating at 2 MHz is terminated with a load ZL=60+j40ohms if U=0.6C find the reflection coefficient y, the standing wave ratios and the input impedance
2. Derive equation of attenuation constant and phase constant of transmission line in terms of line constants R, L, C and G and explain the significance of reflection coefficient and insertion loss (ec6503 transmission lines and wave guides important questions)
3. Derive the expression that permit easy measurement of power flow on a line of negligible losses
| Subject Name | Transmission Lines and Wave Guides |
| Subject Code | EC6503 |
| Regulation | 2013 |
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