ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 8.1, Problem 13RQ
Explain how a 10-turn trim pot is adjusted.
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Q2)a) consider the Circuit in figure 2 with initial conditions of Vc (o) = 5V, I₁ (o) = 1A,
(i) redraw the circuit in the frequency domain using laplace Wansforms.
(ii)
using this circuit derive an
equation for the Voltage across the inductor in the time domain..
3.12
ww
=V/3F
ZH
(figure 2)
d) Solve the following second order differential equation using laplace transforms.
d12
+
5 dx 3x=71
dt
-
with initial conditions x² (0) = 2, α(0) = 1
b) Another periodic waveform is defined by
T
c)
g(t)=
T
with g(t+mT) = g(t) and m is an integer.
(i)
Sketch g(t) over two full cycles in the time domain, labelling the axes.
(ii)
Derive the formulae for the complex Fourier coefficients c₁ for g(t).
For a periodic waveform h(t), if its complex Fourier coefficients are
T
T
when n is odd
T
2n²²
T
4nn
when n is even and not zero
4nn
please derive the first five non-zero terms of the real Fourier series for h(t).
Q3)α) f(t) = (-+- 1 Isto
f(t+mT) = f(t).
L+- I Ost ST
integer
(i) sketch f(t) 2 full cycles time domain. (labelling the axis).
(ii) Derive the formula for the real fourier Coefficients
(i) Real Fourier series f(t), first 5 non-terms.
an
bn for f(t).
Chapter 8 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 8.1 - In what way is resistance wire different from the...Ch. 8.1 - What is the trade name for the most popular type...Ch. 8.1 - Prob. 3RQCh. 8.1 - Name the three ways by which resistors are rated.Ch. 8.1 - Resistors are classified as passive devices. Why?Ch. 8.1 - Identify the type of circuit that generally...Ch. 8.1 - State two functions served by a fusible resistor.Ch. 8.1 - What advantage do film resistors have over...Ch. 8.1 - What are the two configurations for chip...Ch. 8.1 - In what way is the construction of an adjustable...
Ch. 8.1 - Compare the connection and control function of a...Ch. 8.1 - If the wiper arm of a linear potentiometer is...Ch. 8.1 - Explain how a 10-turn trim pot is adjusted.Ch. 8.1 - Compare the way the resistance varies in a linear...Ch. 8.1 - Identify the color bands for each of the following...Ch. 8.1 - A 680- resistor has a rated tolerance of 10...Ch. 8.1 - What is the color code for a 365- five-band...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.2 - Calculate the total resistance for each of the...
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