Physics, 05.07.2021 19:40 Priskittles
An unknown wire in a circuit has a circular cross-section with diameter 3.9 mm. It carries a current of 1.3 mA.
Required:
a. What is the current density, in milliamperes per square centimeter, in this wire?
b. If you assume the drift velocity in this wire is 1 Ã 10^-2 cm/s, what is the density of charge carries per cubic centimeter?
c. If the conductivity in this wire is 5.5 à 10^6 Ω^-1 m-1, what is the average time between collisions, in nanoseconds?
Answers: 1
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An unknown wire in a circuit has a circular cross-section with diameter 3.9 mm. It carries a current...
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