Questions and Answers of Electronics Fundamentals A Systems Approach

What is the voltage reading of the meter in Figure 2–66 ? Data in Figure 2–66 1.200 30 5L 98 OHMS OHMS ADI 814 DU V 60 O 12 510 426 600 300 D C 1.2 mA L3 Tl0.3- ANALOG MULTIMETER 0.06 12 m
A resistor with a current of 2 A through it in an amplifier circuit converts 1000 J of electrical energy to heat energy in 15 s. What is the voltage across the resistor?
If 574 × 1015 electrons flow through a wire in 250 ms, what is the current in amperes?
There is only one circuit in Figure 2–70 in which it is possible to have all lamps on at the same time. Determine which circuit it is. Data in Figure 2–70 Vs (a) Vs (c) 314 + Lamp 1 12 Lamp
Through which resistor in Figure 2–71 is there always current, regardless of the position of the switches? Data in Figure 2–71 + S HUF FIGURE 2-71 NO 30 SW1 o O+ 2 R ww R www R3 www R4 ww1
In Figure 2–71, show the proper placement of ammeters to measure the current through each resistor and the current out of the battery. Data in Figure 2–71 + Jul 1, 2 3 SW1 o FIGURE 2-71 XC
Show the proper placement of voltmeters to measure the voltage across each resistor in Figure 2–71.Data in Figure 2–71 Vs Holl + SW1 o FIGURE 2-71 2836 d+ R www R ww R3 ww R4 www R5 SW2 R6
Find the minimum and the maximum resistance within the tolerance limits for each resistor in Figure 2–62 (a).Data in Figure 2–62 (a) A (a) B C
Express each number in Problem 11 in ohms using a metric prefix.Data in Problem 11Express each of the following numbers in scientific notation: (a) 3000 (b) 75,000 (c) 2,000,000.
Express each number in Problem 13 in amperes using a metric prefix.Data in Problem 13Express each of the following numbers in scientific notation: (a) 8400 (b) 99,000 (c) 0.2 × 106
If an engineer has an idea for improving a circuit board, what steps should be taken before the change is implemented?
Cite examples of products made by system manufacturers.
Cite the fundamental reasons that technician work has shifted from troubleshooting and repair at the component level to a system approach.
What are key differences between an electrical system and an electronic system?
What are two advantages to converting an analog signal into a digital signal?
What is the primary difference between a block diagram and a flow chart?
(a) What is an oscillator? (b) How does it differ from most circuits?
(a) What do the initials HVDC stand for? (b) Where is it used?
The transfer function for a device is a plot of the output to the input. What does the transfer function look like for an ADC?
Express each of the following numbers in scientific notation:(a) 3000(b) 75,000(c) 2,000,000.
Express each fractional number in scientific notation: (a) 1/500 (b) 1/2000 (c) 1/5,000,000.
Express each of the following numbers in scientific notation:(a) 8400 (b) 99,000 (c) 0.2 × 106
Express each of the following numbers in scientific notation: (a) 0.0002 (b) 0.6 (c) 7.8 × 10-2
Express each of the following as a regular decimal number:(a) 2.5 × 10-6 (b) 5.0 × 102 (c) 3.9 × 10-1
Express each number in regular decimal form: (a) 4.5 × 10-6 (b) 8 × 10-9 (c) 4.0 × 10-12
Add the following numbers: (a) (9.2 × 106) + (3.4 × 107) (b) (5 × 103) + (8.5 × 10-1) (c) (5.6 × 10-8) + (4.6 v 10-9)
Perform the following subtractions:(a) (3.2 × 1012) - (1.1 × 1012) (b) (2.6 × 108) - (1.3 × 107) (c) (1.5 × 10-12) - (8 × 10-13)
Perform the following multiplications: (a) (5 × 103) (4 × 105) (b) (1.2 × 1012) (3 × 102) (c) (2.2 × 10-9) (7 × 10-6).
Express each number in engineering notation: (a) 89,000 (b) 450,000 (c) 12,040,000,000,000
Express each number in engineering notation:(a) 2.35 × 105 (b) 7.32 × 107 (c) 1.333 × 109
Express each number in engineering notation: (a) 0.000345(b) 0.025(c) 0.00000000129
Express each number in engineering notation: (a) 9.81 × 10-3 (b) 4.82 × 10-4 (c) 4.38 × 10-7
Add the following numbers and express each result in engineering notation:(a) 2.5 × 10-3 + 4.6 × 10-3 (b) 68 × 106 + 33 × 106 (c) 1.25 × 106 + 250 × 103
Multiply the following numbers and express each result in engineering notation:(a) (32 × 10-3) (56 × 103) (b) (1.2 × 10-6) (1.2 × 10-6) (c) 100(55 × 10-3)
Divide the following numbers and express each result in engineering notation: (a) 50 (2.2 x 10³) (b) (5 × 10³) = (25 × 106) (c) (560 × 10³) ÷ (660 × 10³)
Express each of the following as a quantity having a metric prefix: (a) 31 × 10-3 A (b) 5.5 × 103 V (c) 20 × 10-12 F
Express the following using metric prefixes: (a) 3 × 10-6 F (b) 3.3 × 106 Ω(c) 350 × 10-9 A
Perform the indicated conversions: (a) 5 mA to microamperes (b) 3200 μW to milliwatts (c) 5000 kV to megavolts (d) 10 MW to kilowatts.
Determine the following: (a) The number of microamperes in 1 milliampere. (b) The number of millivolts in 0.05 kilovolt. (c) The number of megohms in 0.02 kilohm. (d) The number
How many significant digits are in each of the following numbers: (a) 1.00 × 103 (b) 0.0057 (c) 1502.0 (d) 0.000036 (e) 0.105 (f) 2.6 × 102
Round each of the following numbers to three significant digits. Use the “round-to-even” rule. (a) 50,505 (b) 220.45 (c) 4646 (d) 10.99 (e) 1.005

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