Use the Smith chart to find the reflection coefficient correspon Use the Smith chart to find the reflection coefficient corresponding to a load impedance: (a) ZL = 3Z0, (b) ZL = (2 – 2 j) Z0, (c) ZL = 2 jZ0, (d) ZL = 0 (short circuit).
Use the Smith chart to find the normalized load impedance Use the Smith chart to find the normalized load impedance corresponding to a reflection coefficient: (a) ????0. 5, (b) ????0. 5 60o, (c) ????1, (d) ????0. 3 30o, (e) ????0, (f) ????j
(a) For a 1080 steel that has been water quenched, (a) For a 1080 steel that has been water quenched, estimate the tempering time at 425째C (800째F) to achieve a hardness of 50 HRC. (b) What will be the tempering time at 315째C (600째F) necessary to attain the same hardness?
The voltage of an electromagnetic wave traveling on a The voltage of an electromagnetic wave traveling on a transmission line is given by v (z, t) =5e-az sin (4p x 109t – 20p2) (V), where z is the distance in meters from the generator. (a) Find the frequency, wavelength, and phase velocity of the wave. […]
(a) Determine the ratio of butadiene to styrene repeat units (a) Determine the ratio of butadiene to styrene repeat units in a copolymer having a number-average molecular weight of 350,000 g/mol and degree of polymerization of 4425. (b) Which type(s) of copolymer(s) will this copolymer be, considering the following possibilities: random, alternating, graft, and block? […]
The two prisms in Fig. 8-35 (P8.19) are made of glass with The two prisms in Fig. 8-35 (P8.19) are made of glass with n = 1:5. What fraction of the power density carried by the ray incident upon the top prism emerges from bottom prism? Neglect multiple internal reflections.
The transformer shown in the figure consists of a long wire The transformer shown in the figure consists of a long wire coincident with the z-axis carrying a current I = I0 cos ?t, coupling magnetic energy to a toroidal coil situated in the x–y plane and centered at the origin. The toroidal core uses […]
The plates of a parallel-plate capacitor have areas 10 cm2 each The plates of a parallel-plate capacitor have areas 10 cm2 each and are separated by 2 cm. The capacitor is filled with a dielectric material with ????4?0, and the voltage across it is given by V (t) = 30cos 2??106t (V). Find the displacement […]
The switch in the bottom loop of Fig. 6-17 (P6.1) The switch in the bottom loop of Fig. 6-17 (P6.1) is closed at t = 0 and then opened at a later time t1. What is the direction of the current I in the top loop (clockwise or counterclockwise) at each of these two times?
The square loop shown in Fig. 6-19 (P6.6) is coplanar with a The square loop shown in Fig. 6-19 (P6.6) is coplanar with a long, straight wire carrying a current I(??t) = 5cos 2??104t (A) (a) Determine the emf induced across a small gap created in the loop. (b) Determine the direction and magnitude of […]