Find the drift velocity of electrons in a copper wire with a diameter of 130 mm if it carries a current of 10 amperes.

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1. Find the drift velocity of electrons in a copper wire with a diameter of 130 mm if it carries
a current of 10 amperes.
2. What should be the length and cross-sectional area of a wire for it to have a resistance of
80 from a 5 – cm³ metal that has a resistivity of 9 x 10-8 N – m.
Transcribed Image Text:1. Find the drift velocity of electrons in a copper wire with a diameter of 130 mm if it carries a current of 10 amperes. 2. What should be the length and cross-sectional area of a wire for it to have a resistance of 80 from a 5 – cm³ metal that has a resistivity of 9 x 10-8 N – m.
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