ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 4.2, Problem 3RQ
A toaster draws 8 amperes when connected to a 120-volt source. What is the wattage rating of the toaster?
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Chapter 4 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 4.1 - What is the practical unit of electric charge?Ch. 4.1 - Prob. 2RQCh. 4.1 - Prob. 3RQCh. 4.1 - Explain what a current flow of 1 ampere can be...Ch. 4.1 - Account for the fact that electric current travels...Ch. 4.1 - Prob. 6RQCh. 4.1 - Prob. 7RQCh. 4.1 - Prob. 8RQCh. 4.1 - Prob. 9RQCh. 4.1 - Prob. 10RQ
Ch. 4.1 - Prob. 11RQCh. 4.1 - Prob. 12RQCh. 4.1 - What is the cause and effect of resistance?Ch. 4.1 - When using an ohmmeter to measure resistance, what...Ch. 4.1 - Convert the following data: a. 12,000 A to kA b....Ch. 4.1 - Prob. 16RQCh. 4.2 - Define electric power.Ch. 4.2 - What is the basic unit used to measure electric...Ch. 4.2 - A toaster draws 8 amperes when connected to a...Ch. 4.2 - Prob. 4RQCh. 4.2 - Prob. 5RQCh. 4.2 - Prob. 6RQCh. 4.2 - Prob. 7RQCh. 4.2 - Compare a closed and an open electric circuit.Ch. 4.2 - Prob. 9RQCh. 4.2 - What does Ohms law tell us about current flow in a...Ch. 4.2 - Ohms law is applied to a circuit using what three...Ch. 4.2 - Prob. 12RQCh. 4.2 - Prob. 13RQCh. 4.2 - Prob. 14RQCh. 4.2 - Prob. 15RQCh. 4.2 - Prob. 16RQCh. 4.2 - Prob. 17RQCh. 4.2 - Prob. 18RQ
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- What is the amperage of 3 clothes dryers with nameplate wattage at 7500 and 240V?arrow_forward1. Determine the current flow in a circuit with a resistance of 5 Ohms on a 120 and 240 Volts current supply. (Circuit refers to the electrical wiring installation).2. A circuit has a resistance of 20 Ohms, and the current flows at 12 Amperes. Determine the Voltage.3. A water heater draws 10 Amperes at 240 Volts current supply. Determine its heat resistance Note: Kindly put an explanation on it. Thank youuu!!arrow_forwardDetermine the total current flow in a lamp having 220 volt current supply, a fan of 240 volt supply and a hair dryer having 120 volts with a resistance of 12 ohms. Show solution .arrow_forward
- Which is the current in each 20-ohm resistor?arrow_forward: If you increase the EMF of the used power supply , what will happen to the time constant & the maximum current passing in the circuit ?arrow_forwardwhat will be the total energy consumed by the 18 ohms load resistor in 8 seconds?arrow_forward
- What is the voltage of a small electric heater if the heater is drawing 12 amperes and has a resistance of 10 ohms? a. 120 volts b. 240 volts c. 60 volts d. none of the abovearrow_forward14. Is it less expensive to operate the electric heating unit in Question 12 on 240 V or 120 V?arrow_forwarda. How much power in watts would the two elements in problem 17 use if connected to 220 volts? Show calculations. b. What is the current draw at 220 volts? Show calculations.arrow_forward
- Is it less expensive to operate the electric heating unit in Question 12 on 240 V or 120V?arrow_forwardWhat is the kilowatt output of an electric heater that has an ampere draw of 50 amperes if the voltage source is (a) 208 volts? (b) 240 volts?arrow_forwardA condominium owner complains of not getting enough hot water. The serviceman checks the voltage at the water heater and finds the voltage to be 208 volts. The serviceman checks further and finds the electrical service on the building to be a 120/208-volt, three-phase, 4-wire system. The main electrical panelboard for each condominium unit is fed with a 3-wire supply. The nameplate on the electric water heater is marked 4500 watts, 240 volts. What is the wattage output of the heating element in this water heater when connected to a 208-volt supply? _____________________arrow_forward
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