Question

A long copper strip 4 m wide is placed in a 1.2-T magnetic field. When a steady current of 15 A passes through it, the Hall emf is measured to be 1.02 ?V. Determine the drift velocity of the electrons 8.5X10^-8m/s 2.1 X 10^-7m/s 1.02 X10^-7m/s 4.7X10^-5 m/s

          A long copper strip 4 m wide is placed in a 1.2-T magnetic field. When a steady current of 15 A passes through it, the Hall emf is measured to be 1.02 ?V.
Determine the drift velocity of the electrons
8.5X10^-8m/s
2.1 X 10^-7m/s
1.02 X10^-7m/s
4.7X10^-5 m/s

A long copper strip 4 m wide is placed in a 1.2-T magnetic field. When a steady current of 15 A passes through it, the Hall emf is measured to be 1.02 ?V.
Determine the drift velocity of the electrons
8.5X10^-8m/s
2.1 X 10^-7m/s
1.02 X10^-7m/s
4.7X10^-5 m/s

Added by Mackenzie Y.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

09/12/2023

Step 1

Given: - Width of the copper strip, \( w = 4 \, \text{m} \) - Magnetic field strength, \( B = 1.2 \, \text{T} \) - Current through the strip, \( I = 15 \, \text{A} \) - Hall emf, \( \epsilon_H = 1.02 \, \mu\text{V} = 1.02 \times 10^{-6} \, \text{V} \) The Show more…

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A long copper strip 4 m wide is placed in a 1.2-T magnetic field. When a steady current of 15 A passes through it, the Hall emf is measured to be 1.02 μV. Determine the drift velocity of the electrons. 8.5x10^-8 m/s 2.1 x 10^-7 m/s 1.02 x 10^-7 m/s 4.7x10^-5 m/s