A 300 ohm lossless air transmission line is connected to a complex load composed of a resistor in series with an inductor, as Z₁= 300+j2x10 ³ At 5 MHz, determine: (a) reflection coefficient, (b) SWR, (c) location of voltage maximum nearest to the load, and (d) location of current maximum nearest to the load.

b) A high-voltage twin-wire transmission line comprises two cylindrical copper conductors running parallel to each other in air. The two conductors are solid, having radius a = 10mm. The spacing between conductor centres D = 100mm One conductor is grounded, and the other conductor raised to 25kV. i) Sketch the electric field and equipotential distribution on a cross-section of the transmission line, labelling the most important features. ii) Calculate the capacitance per unit length of this twin wire line in picofarads per metre. iii) Show that the free charge accumulated on each conductor is approximately ±0.3μC/m.

Find the height of an infinitely long conductor from point P which is carrying current of 6.28A and field intensity is 0.5 units. a.05 b. 2 c. 6.28 04.1

3 A 50-22 lossless transmission line is connected to a load composed of a 75-2 resistor in series with a capacitor of unknown capacitance (Fig. P2.26). If at 10 MHz the voltage standing wave ratio on the line was measured to be 3, determine the capacitance C. Zo = 50 92 RL = 75 02 C = ? Figure P2.26: Circuit for Problem 2.26.