Principles Of Electric Circuits
10th Edition
ISBN: 9780134879482
Author: Floyd, Thomas L.
Publisher: Pearson,
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Textbook Question
Chapter 2, Problem 10ST
Electrical current is defined as
- 1. the reciprocal of resistance
- 2. the rate of flow of charge
- 3. the energy required to move charge
- 4. the charge on free electrons
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10.93 Figure 10.135 shows a Colpitts oscillator. Show that the
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(Hint: Set the imaginary part of the impedance in the
feedback circuit equal to zero.)
Determine (a) the average and (b) rms values of the periodiccurrent waveform shown in Fig. P8.3.
10.68 Find the Thevenin equivalent at terminals a-b in the
circuit of Fig. 10.111.
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Chapter 2 Solutions
Principles Of Electric Circuits
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Ch. 2 - The outermost shell of an atom contains the...Ch. 2 - Silicon and germanium are classed as insulators.Ch. 2 - The unit of charge is ampere.Ch. 2 - Like charges repel.Ch. 2 - Coulombs law shows the relationship of the energy...Ch. 2 - A battery stores charge.Ch. 2 - An ideal voltage source can provide a constant...Ch. 2 - A volt can be defined in terms of energy per...Ch. 2 - A fuel cell combines a fuel with an oxidizer to...Ch. 2 - The unit of current is coulomb.Ch. 2 - In a 5-band precision resistor, the fourth band is...Ch. 2 - A resistor with a single black band represents...Ch. 2 - A resistor labeled 0R1 is 1 ohm.Ch. 2 - A rheostat performs the same function as a...Ch. 2 - A strain gauge changes resistance in response to...Ch. 2 - Prob. 17TFQCh. 2 - A circular mil is a unit of area.Ch. 2 - The three basic measurements that can be done by a...Ch. 2 - If a GFCI breaker detects a difference in the hot...Ch. 2 - A neutral atom with an atomic number of three has...Ch. 2 - Electron orbits are called 1. shells 2. nuclei 3....Ch. 2 - Materials in which there is no current when...Ch. 2 - When placed close together, a positively charged...Ch. 2 - The charge on a single electron is 1. 6.25 1018 C...Ch. 2 - Potential difference is another term for 1. energy...Ch. 2 - The unit of energy is the 1. watt 2. coulomb 3....Ch. 2 - Which one of the following is not a type of energy...Ch. 2 - Which one of the following is not a possible...Ch. 2 - Electrical current is defined as 1. the reciprocal...Ch. 2 - There is no current in a circuit when 1. a switch...Ch. 2 - The primary purpose of a resistor is to 1....Ch. 2 - Wire resistance depends on the 1. type of material...Ch. 2 - Potentiometers and rheostats are types of 1....Ch. 2 - The current in a given circuit is not to exceed 22...Ch. 2 - The neutral line in a ac utility should 1. have...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - How many coulombs of charge do 50 1031 electrons...Ch. 2 - How many electrons does it take to make 80 C...Ch. 2 - Determine the voltage in each of the following...Ch. 2 - Five hundred joules of energy are used to move 100...Ch. 2 - What is the voltage of a battery that uses 24 J of...Ch. 2 - How much energy does a 12 V battery use to move...Ch. 2 - If a resistor with a current of 20 mA through it...Ch. 2 - List four common sources of voltage.Ch. 2 - Upon what principle is electrical generators...Ch. 2 - How does and electronic power supply differ from...Ch. 2 - A certain current source provides 100 mA to a 1 k...Ch. 2 - Determine the current in each of the following...Ch. 2 - Six-tenths coulomb passes a point in 3 s. What is...Ch. 2 - How long does it take 10 C to flow past a point if...Ch. 2 - How many coulombs pass a point in 0.1 s when the...Ch. 2 - 5.74 1017 electrons flow through a wire in 250...Ch. 2 - Find the conductance for each of the following...Ch. 2 - Find the resistance corresponding to the following...Ch. 2 - Determine the resistance values and tolerance for...Ch. 2 - Find the minimum and the maximum resistance within...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance and tolerance of each of...Ch. 2 - Determine the resistance and percent tolerance for...Ch. 2 - From the selection of resistors in Figure 267,...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance and tolerance of each of...Ch. 2 - Determine the color bands for each of the...Ch. 2 - The adjustable contact of a linear potentiometer...Ch. 2 - What resistance is indicated by 4K7?Ch. 2 - Determine the resistance and tolerance of each...Ch. 2 - Trace the current path in Figure 268(a) with the...Ch. 2 - With the switch in either position, redraw the...Ch. 2 - There is only one circuit in Figure 268 in which...Ch. 2 - In Figure 268, determine which (if any) circuits...Ch. 2 - In Figure 268, determine which (if any) circuits...Ch. 2 - Through which resistor in Figure 269 is there...Ch. 2 - Devise a switch arrangement whereby two voltage...Ch. 2 - Show how a single switch can be used to connect a...Ch. 2 - Show the placement of an ammeter and a voltmeter...Ch. 2 - Prob. 42PQCh. 2 - In Figure 271, how much voltage does each meter...Ch. 2 - In Figure 271, indicate how to connect an ammeter...Ch. 2 - In Figure 269, show the proper placement of...Ch. 2 - Show the proper placement of voltmeters to measure...Ch. 2 - What is the voltage reading of the meter in Figure...Ch. 2 - How much resistance is the ohmmeter in Figure...Ch. 2 - Determine the resistance indicated by each of the...Ch. 2 - What is the maximum resolution of a 4-digit DMM?Ch. 2 - Indicate how you would connect the multimeter in...
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- 10.79 For the op amp circuit in Fig. 10.122, obtain Vo. 5 cos 10³t V(+ Figure 10.122 For Prob. 10.79. 10 ΚΩ www 20 ΚΩ www 0.1 µF 40 ΚΩ 0.2 μFarrow_forward10.19 Obtain V, in Fig. 10.68 using nodal analysis. # ML ΖΩ j20 m 12/0° V 492 (+ ww www ' < ་ + V -j4 0.2V Figure 10.68 For Prob. 10.19.arrow_forward10.47 Determine i, in the circuit of Fig. 10.92, using the superposition principle. ML 10 sin(t -30°) V 1Ω www Figure 10.92 For Prob. 10.47. 96 F 202 www 24 V +) 2 H m io 2 cos 3t www 42arrow_forward
- 10.53 Use the concept of source transformation to find V, in the circuit of Fig. 10.97. 492 www -j30 j40 m + 20/0° V(+ j20 ΖΩ www -120 V ° Figure 10.97 For Prob. 10.53.arrow_forward2. Given you have a real valued signal with the following single sided baseband signal spectrum: ↑ ❘m(f)| A f=0 500 750 Sketch the frequency domain of |X(f)| given: a. x1(t) =m(t)cos(2**5000*) b. x2(t)=m(t)cos(2**600) Frequency (Hz)arrow_forwardwhat is deference between full Adder and Half?arrow_forward
- Matched filter in the frequency domain (1.5) (a) Consider the signal s(t) in 3(c). Assuming that the unit of time is a millisecond and the desired frequency resolution is 1 Hz, use the function contFT to compute and plot |S(f). (b) Use the function contFT to compute and plot the magnitude of the Fourier trans- form of the convolution s * SMF numerically computed in 3(d). Also plot for comparison |S(f)12, using the output of 5(a). The two plots should match. (c) Plot the phase of the Fourier transform of s✶ SMF obtained in 5(b). Comment on whether the plot matches your expectations.arrow_forwardFind Eigenvalues and Eigenvectors for the following matrices: [10 4 A=0 2 0 3 1 1 -3arrow_forward1. (20 pts) Plot the pulse and the FFT for a pulse with the following properties at x=0 and x=10 cm. f=2 MHz m=3 Ncyc=2, 6, 20 po 1 MPa (source pressure) x=10 cm (propagates in a Newtonian fluid for 10 cm as a plane wave-not a sound beam) a=0.5 dB/(MHz cm) Consider 3 types of waves: sine, square, and sawtooth. (square and sawtooth only for grad students) Observe your plots and draw some conclusions. Discuss any possible issues you encounter. 2. (20 pts) We have the following 3 ultrasonic transducers: a. Focused 1 MHz, 2.54 cm diameter, 5.08 cm focus b. Focused 3 MHz, 2.54 cm diameter, 5.08 cm focus c. Unfocused 0.1 MHz, 2.54 cm diameter The transducers are operating in water (c=1486 m/s). I. Plot the axial field for all transducers II. Plot the focal transverse field for the focused transducers and the transverse field at the Rayleigh distance (R_0) and at 2R_0 for the unfocused. III. Assume source pressure of 0.1 MPa, and find the acoustic pressure in MPa at the location (r=0, z=4.5…arrow_forward
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