The current flowing through a wire in terms of drift velocity is
[where n = number density, e = electronic charge, A = cross-section
area,
= drift velocity]
Given:
I = 1.6A
d = 2.05 mm
e =
A =
Now, using the equation
[answer]
electromagnetic 8) Drift Velocity: (7 pts) Perform a back of the envelope calculation to determine the...
7) Resistance and Resistivity: (7 pts) Perform a back of the envelope calculation to determine the length of 18-gauge (1 mm diameter) Ni-Chrome wire (p=1.5 x 10-2-m) needed to have a resistance of 1.5 2. Note: Use the approximation = 3.14159 ... 3
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Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...