Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
Q5: Derive the expression for power P = VI in an electrical circuit. Q6: What is the resistance of an electric arc lamp, if the lamp uses 20A20A when connected to a 220 volt?

Q5: Derive the expression for power P = VI in an electrical circuit. Q6: What is the resistance of an electric arc lamp, if the lamp uses 20A20A when connected to a 220 volt?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
See similar textbooks
icon
Related questions
Question
Q5: Derive the expression for power P = VI in an electrical circuit. Q6: What is the resistance of an electric arc lamp, if the lamp uses 20A20A when connected to a 220 volt? Q7: A 162 resistor is connected to a 48v battery. What is the charge flow through it in one minute? Q8: A wire having an area of cross section = 6mm? and another wire having an area of cross section = 10mm2, have the same length and are made up of the same material. Which wire has more resistance? Q9: In two minutes, 120C of charge flow through a conductor. What is the current flowing through it and the voltage across the terminals if the resistance of the conductor is equal to 22? Q10. 100 cm length of wire that is 1.5mm2 in cross section has a measured resistance of 12. Calculate the resistivity of the used material. Q11. Some homes use solid wire having a cross-sectional area of 4mm2 to provide electrical distribution to outlets and light sockets. Determine the resistance of 24 meters of this solid wire. (resistivity of the used wire = 2x10-8 Q.m). Q12. What is the power and the current flowing through a 250v light bulb each second if the electric charge quantity is 0.3C? Q13. How many coulombs of charge flow through a circuit carrying a current of 2A in two minutes? Q14. The current in a certain conductor is 40mA. What is the total charge in coulombs that passes through a conductor in 1.5 second? Q15. How much time is required for 100 coulombs of charge to flow past a point if the rate of flow is 2A? Q16. Calculate the resistance of a piece of aluminum that is 10cm long and has a cross-sectional area of 104 m?. What is the resistance of a piece of glass with the same dimensions? PAI=2.82x10$2.m, pglass=10102.m. Q17. 0.90V potential difference is maintained across a 1.5m length of tungsten wire that has a cross- sectional area of 0.60mm2. What is the current in the wire? pungsten=5.6x10*2.m Q18. A 2.4m length of wire that is 0.031cm? in cross section has a measured resistance of 0.24Q. Calculate the resistivity of the used material. Q19. The external diameter of a 5m long hollow tube is 10cm and the thickness of its wall is 5mm. If the specific resistance of used material is 1.7 x 105 Q.m, then determine its resistance. Q20. If a current of 0.75A, when a battery of 1.5V is connected to the wire of 5m having cross sectional area 2.5x10 m2, then determine the resistivity. Q21. What is the ratio of the resistivity of 2 wires having the same length and same resistance with area of cross section 2m? and 5m2 respectively. Q22. The filament of a 100W, 120V light bulb is a tungsten wire 0.035 mm in diameter and 27.7 cm in long. a. What is the light bulb's operating resistance? b. Determine the cross sectional area of the filament. c. Calculate the resistivity of the tungsten at the filament's operating temperature. d. What is the total charge in coulombs that passes through a filament's in two minutes? Q23. A constant current source supplies a current of 300 mA to a load of 1K. When the load is changed to 1002, find the load current. Q24. A piece of silver wire has a resistance of 1 Q. What will be the resistance of another conductor wire of one-third the length and one-third the diameter, if the specific resistance of the used wire is 30 times that of silver. Q25. How long can a 1.5 V flashlight battery provide a current of 250 mA to light the bulb if the ampere- hour rating is 16 Ah? Q26. How much energy in kilowatt-hours is required to light a 60W bulb continuously for one year?
Transcribed Image Text:Q5: Derive the expression for power P = VI in an electrical circuit. Q6: What is the resistance of an electric arc lamp, if the lamp uses 20A20A when connected to a 220 volt? Q7: A 162 resistor is connected to a 48v battery. What is the charge flow through it in one minute? Q8: A wire having an area of cross section = 6mm? and another wire having an area of cross section = 10mm2, have the same length and are made up of the same material. Which wire has more resistance? Q9: In two minutes, 120C of charge flow through a conductor. What is the current flowing through it and the voltage across the terminals if the resistance of the conductor is equal to 22? Q10. 100 cm length of wire that is 1.5mm2 in cross section has a measured resistance of 12. Calculate the resistivity of the used material. Q11. Some homes use solid wire having a cross-sectional area of 4mm2 to provide electrical distribution to outlets and light sockets. Determine the resistance of 24 meters of this solid wire. (resistivity of the used wire = 2x10-8 Q.m). Q12. What is the power and the current flowing through a 250v light bulb each second if the electric charge quantity is 0.3C? Q13. How many coulombs of charge flow through a circuit carrying a current of 2A in two minutes? Q14. The current in a certain conductor is 40mA. What is the total charge in coulombs that passes through a conductor in 1.5 second? Q15. How much time is required for 100 coulombs of charge to flow past a point if the rate of flow is 2A? Q16. Calculate the resistance of a piece of aluminum that is 10cm long and has a cross-sectional area of 104 m?. What is the resistance of a piece of glass with the same dimensions? PAI=2.82x10$2.m, pglass=10102.m. Q17. 0.90V potential difference is maintained across a 1.5m length of tungsten wire that has a cross- sectional area of 0.60mm2. What is the current in the wire? pungsten=5.6x10*2.m Q18. A 2.4m length of wire that is 0.031cm? in cross section has a measured resistance of 0.24Q. Calculate the resistivity of the used material. Q19. The external diameter of a 5m long hollow tube is 10cm and the thickness of its wall is 5mm. If the specific resistance of used material is 1.7 x 105 Q.m, then determine its resistance. Q20. If a current of 0.75A, when a battery of 1.5V is connected to the wire of 5m having cross sectional area 2.5x10 m2, then determine the resistivity. Q21. What is the ratio of the resistivity of 2 wires having the same length and same resistance with area of cross section 2m? and 5m2 respectively. Q22. The filament of a 100W, 120V light bulb is a tungsten wire 0.035 mm in diameter and 27.7 cm in long. a. What is the light bulb's operating resistance? b. Determine the cross sectional area of the filament. c. Calculate the resistivity of the tungsten at the filament's operating temperature. d. What is the total charge in coulombs that passes through a filament's in two minutes? Q23. A constant current source supplies a current of 300 mA to a load of 1K. When the load is changed to 1002, find the load current. Q24. A piece of silver wire has a resistance of 1 Q. What will be the resistance of another conductor wire of one-third the length and one-third the diameter, if the specific resistance of the used wire is 30 times that of silver. Q25. How long can a 1.5 V flashlight battery provide a current of 250 mA to light the bulb if the ampere- hour rating is 16 Ah? Q26. How much energy in kilowatt-hours is required to light a 60W bulb continuously for one year?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Electric heating unit
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.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS