Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 22RQ
What is the resistance of a parallel circuit with resistances of 10 ohms and 20 ohms?
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In the following parallel circuit, what is the equivalent resistance and the total current in the circuit?
what would be the resistance of a circuit that is open
Which of the following is not a characteristic ofparallel circuits?a. Total circuit resistance is always less thanthe resistance of the leg with the lowest totalresistance.b. The current through each leg will be differentif the resistance values are different.c. The sum of the resistance in each leg equalsthe total circuit resistance.d. Source voltage will be dropped across eachleg of the parallel circuit.
Chapter 3 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 3 - What is a series circuit?Ch. 3 - What is a control circuit?Ch. 3 - Safety devices in an electrical circuit are...Ch. 3 - How are series circuits used in air-conditioning...Ch. 3 - Why are series circuits used for most control...Ch. 3 - The current draw in a series circuit is _____. a....Ch. 3 - The voltage drop of a series circuit is _____. a....Ch. 3 - How would switches used as safety devices be...Ch. 3 - Draw a series circuit with a thermostat, a...Ch. 3 - Two identical 115-volt light bulbs connected in...
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Parallel circuits are used in the air-conditioning...Ch. 3 - Why are parallel circuits used in the...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - If two 115-volt loads were connected in parallel...Ch. 3 - What is a series-parallel circuit?Ch. 3 - Why are series-parallel control circuits important...Ch. 3 - Draw a series-parallel circuit with one switch...Ch. 3 - What is the resistance of a parallel circuit with...Ch. 3 - What is the resistance of a parallel circuit with...Ch. 3 - What is the total ampere draw of a parallel...Ch. 3 - What is the voltage of a series circuit with four...Ch. 3 - What is the resistance of a series circuit with...
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- How many degrees are the current and voltage out of phase witheach other in a pure resistive circuit?arrow_forwardDescribe the characteristics of the voltage, amperage, and resistances when there is more than one load in a parallel circuit.arrow_forwardIf there were a current flowing of 5A in a 120-V circuit,what would the resistance be? A. 25 B. 24 c. 600 D. 624arrow_forward
- How many degrees are the current and voltage out of phase with each other in a pure resistive circuit?arrow_forwardIf the resistance in a 120-V circuit was 40 , what would the current be in amperes? A. 4800A B. 48A C. 4A D. 3Aarrow_forwardPower-consuming devices are wired in _____(series orparallel).arrow_forward
- To protect electronic circuits, some voltage regulators have a circuit built into them.arrow_forwardTo protect electronic circuits, some voltage regulatorshave a __ circuit built into them.arrow_forwardThe collector leakage current in a transistor is 300 μA in CE arrangement. If now the transistor is connected in CB arrangement, what will be the leakage current? Assume β = 120. (2) For a certain transistor, IB = 20 μA; IC = 2 mA and β = 80. Calculate ICBO. (3) In a transistor, IB = 68 μA, IE = 30 mA and β = 440. Determine α rating of the transistor. Then determine the value of IC using both the α rating and β rating of the transistor.arrow_forward
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