A fully-charged power bank with a full capacity of 100,000 mAH is used to supply a DC lamp of 12 ohms at a constant voltage of 24 volts for 35 hours. The said power bank is then used to power up a DC load requiring 3 A for 8 hours. What percentage of the full charge capacity of the power bank remains? If it is now used to charge a cellular phone and was drained in 12 hours, what is the average current requirement of the phone? How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current is applied thru a cross-sectional area of 0.005 m². Use electronic charge of 1.6 x 10-19 coulomb per electron. Express your answer in scientific notation whose unit is electrons per cubic meter.
A fully-charged power bank with a full capacity of 100,000 mAH is used to supply a DC lamp of 12 ohms at a constant voltage of 24 volts for 35 hours. The said power bank is then used to power up a DC load requiring 3 A for 8 hours. What percentage of the full charge capacity of the power bank remains? If it is now used to charge a cellular phone and was drained in 12 hours, what is the average current requirement of the phone? How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current is applied thru a cross-sectional area of 0.005 m². Use electronic charge of 1.6 x 10-19 coulomb per electron. Express your answer in scientific notation whose unit is electrons per cubic meter.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Pls show the complete solution and box the final answer
(FInal answers should be rounded off to the 4th decimal place)
![4. A fully-charged power bank with a full capacity of 100,000 mAH is used to supply a DC lamp of 12
ohms at a constant voltage of 24 volts for 35 hours. The said power bank is then used to power up
a DC load requiring 3 A for 8 hours. What percentage of the full charge capacity of the power bank
remains? If it is now used to charge a cellular phone and was drained in 12 hours, what is the
average current requirement of the phone?
5. How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m
by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current
is applied thru a cross-sectional area of 0.005 m². Use electronic charge of 1.6 x 10-19 coulomb per
electron. Express your answer in scientific notation whose unit is electrons per cubic meter.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbed885d2-f3f5-44e7-be7d-562bf937a296%2F5926a6af-76f1-4c36-b193-b8cdff589515%2Fryqbr1h_processed.png&w=3840&q=75)
Transcribed Image Text:4. A fully-charged power bank with a full capacity of 100,000 mAH is used to supply a DC lamp of 12
ohms at a constant voltage of 24 volts for 35 hours. The said power bank is then used to power up
a DC load requiring 3 A for 8 hours. What percentage of the full charge capacity of the power bank
remains? If it is now used to charge a cellular phone and was drained in 12 hours, what is the
average current requirement of the phone?
5. How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m
by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current
is applied thru a cross-sectional area of 0.005 m². Use electronic charge of 1.6 x 10-19 coulomb per
electron. Express your answer in scientific notation whose unit is electrons per cubic meter.
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