Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
thumb_up100%
Transcribed Image Text:Q1.
If a piece of 1.5mm² copper wire has a resistance of 0.012, what is its
length? (Given: Resistivity = 1.723x10-³ 2-m)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 3 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 14. A 6-V lead-acid battery has an A-hr rating of 180 A-hr. The battery is to be load-tested. What should be the test current, and what are the maximum permissible amount and duration of the voltage drop?arrow_forwardA cube of an alloy of resistivity is 2.12µn-m is 3x10^-2 m on a side. Determine the resistance between any two faces of the cube. * 67.07µn O 60.77µn O 70.67µn O 77.06µnarrow_forwardThe length and diameter of copper wire are found to be 100 and 0.002 m respectively consider that resistivity of the copper is 1.72 x 10'-8 ohm-m calculate the value of the resistancearrow_forward
- Determine the resistance of a bus bar made of copper if the length is 10 meters long and the cross section is a 4 x 4 cm2. Use 1.7241 micro ohm-cm as the resistivity in ohm.arrow_forwardA copper wire has a resistance of 0.85 ohm at 200C. What will be its resistance at 400C ? Temperature coefficient of resistance of copper at 00C is 0.004/0C.arrow_forwardThe resistance of a length of copper wire is 3.60 ohms at 20oC. At what temperature will the resistance be 5 ohms. Take temperature coefficient for copper at 20oC 0.00393/oC.arrow_forward
- The resistance of a silver wire is 0.10 at 20 °C. Atwhat temperature will its resistance increased by 25% if its temperature coefficient of resistance at 20°C is 0.0038 /C°arrow_forwardWhat is the resistance of a platinum resistor at 480 degrees C, if its resistance at 16 degrees C is 110 ohms? Assume the fractional change is resistance per degree of temperature at To is 0.00385.arrow_forwardthe resistance of a wire is 126.48 ohms at 100 °C and 100 ohms at 25 °C . determine the temperature coefficient of copper at 0 °C.arrow_forward
- What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.32 2? (the resistivity of tungsten is 5.6 x 10-8 Qm. 11x10-4 marrow_forwardWhat is the resistivity of platinum if a cube of 1 cm along each edge has a resistance of 10 microohm across opposite faces?arrow_forwardFigure 2 4. Consider the circuit in Figure 3. D1 is Gallium arsenide and D2 is Silicon, each has a forward resistance of 500. Determine the following: a. The states of D1 and D2. Explain. b. Current 11 through R1 c. Current 12 through R2 d. Current 13 through R3 e. Voltage Vo Liv Hilt R1 1092 V1 12V (+2) V1 D1 1V 50Hz 0° 1 D1 R2 1592 Figure 3 5. Do number 4 again, but this time reverse both the positions of D1 and D2. 6. Consider the circuit in Figure 4. a. Calculate the voltage across R3 during the positive half cycle of the source voltage V1. b. Calculate the voltage across R3 during the negative half cycle of the source voltage V1. c. Sketch the waveform of the voltage across R3. R1 1kQ V2 9V D2 R3 10092 R2 1k92 D2 Vo R3 1k92arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning