Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Textbook Question
Chapter 9, Problem 5P
What size capacitor is capable of storing
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The E-field pattern of an antenna. independent of , varies as follows:
E
0
0° ≤ 0≤ 45°
45°<≤
90°
90° <8180°
(a) What is the directivity of this antenna?
Umax
7
why did we use this law
Umax = 12 but we divided by 2?
In the sent Solution
=
R
27
The normalized far-zone field pattern of an antenna is given by
(sin cos²)
E =
0
00
and 0 ≤ ≤ π/2.
3/22 π
elsewhere
Find the directivity using
(a) the exact expression
In the sent soalation
Use Prad=2+1
7/2
Pre= 2 + 1 Sco³odo + 5 siño de
Where did the
2 Com from?
Pen and paper solution please with explaination not using chatgpt
Chapter 9 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 9 - The area of the plates of a capacitor is...Ch. 9 - A capacitance of 1200pF is the same as 1.2F.Ch. 9 - When two capacitors are in series with a voltage...Ch. 9 - When two capacitors are in parallel with a voltage...Ch. 9 - Prob. 5TFQCh. 9 - Prob. 6TFQCh. 9 - Prob. 7TFQCh. 9 - Prob. 8TFQCh. 9 - Voltage leads current in a capacitor.Ch. 9 - Prob. 10TFQ
Ch. 9 - Prob. 1STCh. 9 - Prob. 2STCh. 9 - Prob. 3STCh. 9 - A capacitance of 1000pF is smaller than 0.01F...Ch. 9 - Prob. 5STCh. 9 - Prob. 6STCh. 9 - Prob. 7STCh. 9 - Prob. 8STCh. 9 - Prob. 9STCh. 9 - Prob. 10STCh. 9 - Prob. 11STCh. 9 - Prob. 12STCh. 9 - Prob. 13STCh. 9 - A sinusoidal voltage is applied across a...Ch. 9 - Prob. 15STCh. 9 - Prob. 1TSCCh. 9 - Prob. 2TSCCh. 9 - Prob. 3TSCCh. 9 - Prob. 4TSCCh. 9 - Determine the cause for each set of symptoms....Ch. 9 - Find the capacitance when Q=50CandV=10V. Find the...Ch. 9 - Convert the following values from microfarads to...Ch. 9 - Convert the following values from picofarads to...Ch. 9 - Convert the following values from farads to...Ch. 9 - What size capacitor is capable of storing 10mJ of...Ch. 9 - A mica capacitor has a plate area of 20cm2 and a...Ch. 9 - An air capacitor has plates with an area of 0.1m2....Ch. 9 - A student wants to construct a 1F capacity out of...Ch. 9 - A student decide to construct a capacitor using...Ch. 9 - At ambient temperature (25oC), a certain capacitor...Ch. 9 - A 0.001F capacitor has a positive temperature...Ch. 9 - In the construction of a stacked-foil mica...Ch. 9 - What type of capacitor has the higher dielectric...Ch. 9 - Show how to connect an electrolytic capacitor...Ch. 9 - Determine the value of the typographically labeled...Ch. 9 - Name two types of electrolytic capacitors. How do...Ch. 9 - Prob. 17PCh. 9 - Five 1000pF capacitors are in series. What is the...Ch. 9 - Find the total capacitance for each circuit in...Ch. 9 - For each circuit in Figure 9-65 determine the...Ch. 9 - The total charge stored by the series capacitors...Ch. 9 - Determine CT for each circuit in Figure 9-67.Ch. 9 - Determine the total capacitance and total charge...Ch. 9 - Assume you need a total capacitance of 2.1F in a...Ch. 9 - Determine the time constant for each of the...Ch. 9 - Determine how long it takes the capacitor to reach...Ch. 9 - In the circuit of Figure 9-69, the capacitor...Ch. 9 - In Figure 9-70, the capacitor is charged to 25 V....Ch. 9 - Repeat Problem 27 for the following time...Ch. 9 - Repeat Problem 28 for the following time...Ch. 9 - Deterimine XC for a 0.0047F capacitor at each of...Ch. 9 - What is the value of the total capacitive...Ch. 9 - For the circuit in Figure 9-72, find the reactance...Ch. 9 - Prob. 34PCh. 9 - A sinusoidal voltage of 20Vrms produces an rms...Ch. 9 - A 10 kHz voltage is applied to a 0.0047F...Ch. 9 - Determine the true power and the reactive power in...Ch. 9 - If another capacitor is connected in parallel with...Ch. 9 - Ideally, what should the reactance of a bypass...Ch. 9 - Two series capacitors (one 1F, the other of...Ch. 9 - Prob. 41PCh. 9 - How long does it take C to charge to 8 V in Figure...Ch. 9 - Detemine the time constant for the circuit in...Ch. 9 - In Figure 9-74, the capacitor initially is...Ch. 9 - The capacitor in Figure 9-75 is uncharged when the...Ch. 9 - Determine the ac voltage across each capacitor and...Ch. 9 - Find the value of C1 in Figure 9-77.Ch. 9 - How much does the voltage across C5andC6 change...Ch. 9 - If C4 in Figure 9-76 is open determine the voltage...Ch. 9 - Prob. 50PCh. 9 - Prob. 51PCh. 9 - Prob. 52PCh. 9 - Prob. 53PCh. 9 - Prob. 54P
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- I need a detailed solution to a problem. The far-zone electric field intensity (array factor) of an end-fire two-element array antenna, placed along the z-axis and radiating into free-space, is given by E=cos (cos - 1) Find the directivity using (a) Kraus' approximate formula (b) the DIRECTIVITY computer program at the end of this chapter Repeat Problem 2.19 when E = cos -jkr 0505π $[ (cos + 1) (a). Elmax = Cost (case-1)] | max" = 1 at 8-0°. 0.707 Emax = 0.707.(1) = cos [(cose,-1)] (cose-1) = ± 0,= {Cos' (2) = does not exist (105(0)= 90° = rad. Bir Do≈ 4T ar=2() = = Bar 4-1-273 = 1.049 dB T₂ a. Elmax = cos((cose +1)), 0.707 = cos (Close,+1)) = 1 at 6 = π Imax (Cose+1)=== G₁ = cos(-2) does not exist. Girar=2()=π. 4T \cos (0) + 90° + rad Do≈ = +=1.273=1.049dB IT 2arrow_forwardI need an expert mathematical solution. The E-field pattern of an antenna. independent of , varies as follows: 0° ≤ 0≤ 45° E = 0 45° {1 90° 90° < 0 ≤ 180° (a) What is the directivity of this antenna? (b) What is the radiation resistance of the antenna at 200 m from it if the field is equal to 10 V/m (rms) for Ø = 0° at that distance and the terminal current is 5 A (rms)?arrow_forwardI need an expert mathematical solution. The normalized far-zone field pattern of an antenna is given by E = {® (sin cos)/ 0 Find the directivity using 0 ≤ 0 ≤ π and 0≤ 0≤ π/2. 3m2sds2, elsewherearrow_forward
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