ab:01 × ture.com/courses/22333/quizzes/50014/take Question 1 1 pts Current () is

Question

ab:01 × ture.com/courses/22333/quizzes/50014/take Question 1 1 pts Current () is typically measured in Amperes (A) which are a Coulomb p Coulomb is the fundamental unit of charge. One electron has a charge of er second (C/s). A e-=-1.6 × 10-19C. Sometimes we get sloppy and ignore the minus sign, since we know that the charge on the electron is negative. The charge on the proton is equal and opposite to that of the electron. Given a current of -1.452 A, how many billions of electrons flow through the circuit eacth nanosecond? Question 2 1 pts Electrical potential energy is represented by Volts (V). A Volt is a Joule per Coulomb U/C) We could, if we had the time, go back and rework gravitational potential energy as a J/kg If you have 1.824 C of charge at a potential of 45.63 V, what is the energy of the charge?

Explanation / Answer

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1.

Number of electrons flowing through the circuit each nanosecond is

N=(-1.452/-1.6*10-19)

N=9.075*1018 electrons/sec

1 billion =109

1 ns=10-9 s

N=9.075 Billion electrons/ns

2.

Electric Potential energy is given by

U=QV =1.824*45.63

U=83.23 J

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