INSTRUCTION: Answer the following set of problems in a short bond paper. Write (Handwritten) clearly your solution and box your final answer(s).For multiple choice questions, write the letter of the correct answer. 1. A transmission line having negligible losses has primary constants: inductance L=1 0 mbloop km and capacitance C =0.20 pF/kom. Determine, at an operating frequency of 50KHz, (=) the characteristic impedance. (d) the wavelength on the line (b) the propagation coefficient, (c) the attenuator and phase-shift coefficients. 2. A coaxial line has a characteristic impedance of 100 ohms and is terminated in a 400 ohms resistive load. The voltage measured across the termination is 15V. The cable is assumed to have negligible losses. Calculate for the line the values of (=) the reflection coefficient. (d) the reflected current and (b) the incident current, (:) the reflected voltage. (c) the incident voltage 3. Find the relative penmintivity of the dielectric material present in a parallel-plate capacitor if. () 5 =0.28 m2 . d = 100 um, VO = 12 V. and the capacitor contains 1.5 pJ of energy: (b) the stored energy density is 200 Jim3 , VO = 150 V. and d = 50 um; (c) E = 250 kWm and p5 = 40 pC/m2. 4. RG-59 coaxial cable consists of an inner conductor having radius 0.292 mm, an outer conductor having radius 1.855 mm, and a polyethylene spacing material having relative permittivity 2.25. Estimate the capacitance of RG-59 that is 5 m long 4. Find the polarization P in a dielectric material with er = 3.6 if D = 3.0 x 10-7a C/m2 . Assuming the material to be homogeneous and isotropic. 5. A parallel-plate capacitor with area 0.40 m2 and separation 5.5 mm contains three dielectrics with interfaces normal to B and D. as follows: er1 = 3.0, di = 1.0 mm; er2 = 4.0, d2 = 2.0