[3] The instantaneous expression for the current at any point z and time t on a...
(a) Write the relationship between the instantaneous time voltage i(t) = 1, cos(wt+p) and its phasor transform I. Write phasor transforms of the following voltages and currents. All answers should be in the form of AZB where A is a positive number A 20 and B is given in degrees over the range of -180° <B S 180°. Make sure that you include the units. Show all work to receive partial credit. (6) v(t) = VŽ cos(7t + 1/4 -...
Determine v(t) using phasor techiques. Sketxh v(t) in the time
domain.
v(t) C 0.2 nF - i, (t) -3 cos(2t x 1061) mA Figure P4.29
Problem 3-3.
ate Conditions on a Transmission Line Steady-State Conditions on a Line Cha Chap. 3 JE! 11 RMS voltage and current 2X 31/2 x 1/2 Figure 3-36 Standing waves on a lossy transmission line. PROBLEMS 2.1. The characteristic impedance (20) of a lossy transmission line depends on whil of the following? (a) Length of the line. (b) Frequency of the applied signal. (c) Dielectric constant of the insulation. (d) Load at the end of the line. (e) Separation and...
1) What is the frequency of the following current in radians/sec and hertz? i(t) = 36 cos(700πt + 45°) mA 2) What is the phase angle of the following voltage in radians/sec and hertz? Does this phase shift represent a lead or lag. Why? v(t) = 50 cos(3000t - 40°) V 3) What is the frequency of the following current in radians/sec and hertz? What is the phase angle? Is it lead or lag? i(t) = 0.2 cos(500πt + 45°)...
The figures described by the tip of the eleetrie veetor with time for different plane waves on one
of its wavefront surfaces are shown in igure 1. Note that the last value of the instantaneous
field is highlighted by their components on X and Y axis.
Polarization I
Polarization Il
Polarization III
Polarization IV
Figure 1: Polarizaciones.Figure 1: Polarizaciones.
Indicate (explaining your reasonimg) to what hgure (1, 11, I1l, IV), if any, corresponds each
one of the following fields given...
An electric current in a conductor varies with time according to the expression I(t) = 108 sin (200πt), where I is in amperes and t is in seconds. What is the total charge passing a given point in the conductor from t = 0 to t = 1/300 s?
An electric current in a conductor varies with time according to the expression I(t) = 102 sin (240πt), where I is in amperes and t is in seconds. What is the total charge passing a given point in the conductor from t = 0 to t = 1/360 s?
The mathematical expression for a voltage wave on a transmission line is given as: V(z,t) = 5e-azsin(41x10ºt – 2012) (V/m) where z is the distance from the generator and a is an unknown constant. At z = 2 meters the amplitude of the voltage oscillation is measured to be 1 Volt. a) (2 pts) Find the linear frequency of the wave b) (3 pts) Find the wavelength c) (3 pts) Find the phase speed d) (3 pts) Find the value...
Can you please sow the work for the highlighted portion of the
question. I have no idea how that is found. Please show all steps.
Thanks
4, A 50 Ω lossless transmission line of 2 ¼ λ long is connected to an AC source, having a phasor voltage V,- 15 V and a terminal impedance of 50 Ω, and a load Z-50 +j 100 Ω. 1) Draw a schematic of this transmission line circuit; 2) Find the power delivered to...
3(a) A complex signal given by the expression cos (9t x 103t) Vm(t) %3D 0.5cos(Зл х 103t) + сos(8т х 103t) + is used to amplitude modulate a carrier signal, Vc(t) = 3cos(2n shown in Figure 3(a) 105t) as X Vm(t) 0.5cos(3t x 103t) cos(8T x 103t) AM Modulator AM Signal cos(9t x 10t) Vc(t) 3cos(2n x 105t) Figure 3(a) The AM signal in Question 3(a) is developed across 2.2 kn load resistance The modulated carrier in Question 3(a) is...