. A student uses a coil of radius 14 cm with 90 windings. a) Calculate the expected slope for a plot of magnetic field vs current in this coil. b) She performs the lab and measures a slope of 4.2 x 10^-4 T/A. Based on this slope, what value does she calculate for μo ? c) Calculate the percent error between her measured value of μo and the theoretical value. 2. She then uses a permanent magnet of strength B = 0.5 mT to induce a voltage in the (same) coil. Calculate the expected voltage if she pulls the magnet from the coil in 0.02 seconds.
. A student uses a coil of radius 14 cm with 90 windings. a) Calculate the expected slope for a plot of magnetic field vs current in this coil. b) She performs the lab and measures a slope of 4.2 x 10^-4 T/A. Based on this slope, what value does she calculate for μo ? c) Calculate the percent error between her measured value of μo and the theoretical value. 2. She then uses a permanent magnet of strength B = 0.5 mT to induce a voltage in the (same) coil. Calculate the expected voltage if she pulls the magnet from the coil in 0.02 seconds.
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 48P: A strip of copper is placed in a uniform magnetic field of magnitude 2.5 T. The Hall electric field...
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1. A student uses a coil of radius 14 cm with 90 windings.
a) Calculate the expected slope for a plot of magnetic field vs current in this coil.
b) She performs the lab and measures a slope of 4.2 x 10^-4 T/A. Based on this slope, what value
does she calculate for μo ?
c) Calculate the percent error between her measured value of μo and the theoretical value.
2. She then uses a permanent magnet of strength B = 0.5 mT to induce a voltage in the (same) coil.
Calculate the expected voltage if she pulls the magnet from the coil in 0.02 seconds.
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