Question

1. A length of copper wire with a cross-sectional area of 1mm2 carries a current of 0.4A. The conductivity of copper at 200C is 5.78 x 107?/m, and the free electron concentration is 8.43 x 1028m-3. a. Calculate the drift velocity of free electrons b. Calculate the electric field strength c. Find the resistance of 1m length of copper wire

          1. A length of copper wire with a cross-sectional area of 1mm2 carries a current of 0.4A. The conductivity of copper at 200C is 5.78 x 107?/m, and the free electron concentration is 8.43 x 1028m-3.
a. Calculate the drift velocity of free electrons
b. Calculate the electric field strength
c. Find the resistance of 1m length of copper wire

1. A length of copper wire with a cross-sectional area of 1mm2 carries a current of 0.4A. The conductivity of copper at 200C is 5.78 x 107?/m, and the free electron concentration is 8.43 x 1028m-3.
a. Calculate the drift velocity of free electrons
b. Calculate the electric field strength
c. Find the resistance of 1m length of copper wire

Added by Sherry L.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Supreeta N

11/17/2023

Step 1

To calculate the drift velocity of free electrons, we can use the formula: v = (I / (n * A * q)) Where: v = drift velocity I = current n = free electron concentration A = cross-sectional area q = charge of an electron Plugging in the given values: I = 0.4 A n = Show more…

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A length of copper wire with a cross-sectional area of 1mm2 carries a current of 0.4A. The conductivity of copper at 200C is 5.78 x 107ʇ/m, and the free electron concentration is 8.43 x 1028m-3. a. Calculate the drift velocity of free electrons b. Calculate the electric field strength c. Find the resistance of 1m length of copper wire