bzc_physics 222 Lab Report_MFS

# bzc_physics 222 Lab Report_MFS - Zhichuan Ban Physics 222...

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Zhichuan Ban Physics 222 Lab MFS Lab Report 1. Question of the day: what does the magnetic field produced by a current going through a slinky depend on, and how? A: Magnetic field depends on the current, length and the number of turns involves. It is proportional to the current and the number of turns, and inversely proportional to the length. 2. Set up: first, zero the Hall probe. To determine the relationship between the magnitude of magnetic field and current through slinky, we set the turns of slinky as 80, which is all of the slinky, and the length of the slinky to 0.22m. Then change the current by changing the voltage. Put the Hall probe at the middle of the slinky. Record the magnitude of magnetic field and the current. Secondly, to determine the relationship between the length of slinky and the magnetic field, we set the turns to 80, and the current is 5A. Then change the length of slinky by pulling or compressing it. Put the Hall probe at the middle of the slinky. Record the magnitude of magnetic field and the length.

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