ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 2.2, Problem 1RQ
_________ electrons are found in the outermost shell of atoms.
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1)When a positively charged metal touches an electroscope, electrons transfer from ______.2)Charging by ________________ is when two materials are brought into contact. 3)Charging by ________________ is when two materials are rubbed together. When a material has freely moving valence electrons, it is likely to be ___________________ . 4)As we add more charges in a certain location, electric field strength __________________ . 5)Charging by ______________ happens when an object effect on charges without contact and involves _________________ which means rearrangement of the charges in a neutral object.
18. True or False: Electrons have a positive charge
19. If divide voltage by amperage, your result will be in ______________.
20. The rubber / plastic coating on electrical wire is called ______________.
1. A quantity defined as amount of work done over time. _____________
2. Types of material that has 4 valence electrons. _____________
3. One Coulomb is equal to ____________ electrons or protons stored in a dielectric.
4. Best conductor material type. _____________
5. Best insulator material type. _____________
6. The value of a resistor without considering its tolerance value percentages. _____________
7. 1 picoampere (pA) is equal to __________ ampere (A).
Chapter 2 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 2.1 - What three particles can be found within an atom?Ch. 2.1 - Which particle has a negative charge and rotates...Ch. 2.1 - Which particle of an atom has a positive charge?Ch. 2.1 - Compare the size and mass (weight) of the electron...Ch. 2.1 - Prob. 5RQCh. 2.1 - Normally every atom contains an ___________ number...Ch. 2.1 - Prob. 7RQCh. 2.1 - Prob. 8RQCh. 2.1 - Prob. 9RQCh. 2.1 - Prob. 10RQ
Ch. 2.2 - _________ electrons are found in the outermost...Ch. 2.2 - Whenever a valence electron is removed from its...Ch. 2.2 - Prob. 3RQCh. 2.2 - Conductors offer _________ resistance to current...Ch. 2.2 - Conductors have incomplete valence shell of...Ch. 2.2 - Insulators have few, if any, _______ electrons.Ch. 2.2 - Semiconductors have some of the characteristics of...Ch. 2.2 - Two examples of pure semiconductor materials are...Ch. 2.2 - Explain the main characteristic of a semiconductor...Ch. 2.2 - What is voltage similar to?Ch. 2.2 - Electric current refers to the flow of _________...Ch. 2.2 - Compare the resistance of a conductor with that of...Ch. 2.2 - What does the circuit of a simple battery-operated...Ch. 2.2 - Prob. 14RQ
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- A semiconductor is a material that has _____ energy band gap. a)no b)wide c)narrow d)nucleararrow_forwardDoping of a semiconductor material means that impurities are added to_______the resistance of the material.arrow_forwardIf the charging resistor was twice as large as the discharging resistor in Figure 4, theamplitudes of the charging and discharging waveforms would be ________.a. The sameb. Differentarrow_forward
- With a second .01-µF capacitor. Remove the jumper from points A and B. Carefully discharge C1 insert the second capacitor (C2)in series with C1 Insert a jumper between points A and B and note the charge time of C1and C2in series.The Charge time was approximately how many seconds? Since the charge time has decreased to ____________________ the value it was withonly C1 in the circuit, it may be concluded that the total capacitance has (increased ordecreased)? the new RC time is (double or half)? the original and the R has not been changed, we concludethat the new total capacitance is how _____µF.arrow_forwardThe amount of potential required to remove an electron from an atom is the _____ of the atom. A electrolysis pointB ion pointC electron impactD ionization potentialarrow_forwardThe resistance of a wire is 126.48 ohms at 1000C and 100 ohms at 300C. The temperature coefficient of this wire at 00C is ____________per C0.arrow_forward
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