5H10.20 - Oersted's Effect

Code Number:
5H10.20
Demo Title:
Oersted's Effect
Condition:
Excellent
Principle:
Forces & Fields due to Induced Currents
Area of Study:
Electricity & Magnetism
Equipment:
Weather Vane Compass Under a Wire and 6 Volt DC/30 Amp Power Supply.
Procedure:

Turn on the supply and the compass will line up perpendicular to the wire. There is also a smaller overhead model of this to be used with the same power supply.

The Pasco dip needle/Oersted's law apparatus is a compact easy to use unit.  Instructions for this unit are in the 5H10.20 pdf file folder.

References:
  • Jeffrey A. Phillips, Jeff Sanny, "Experimental Evidence for the Biot-Savart Law", TPT, Vol. 61, #7, Oct. 2023, p. 548.
  • Alon Drory, "Motivating the Biot-Savart Law", TPT, Vol. 61, #5, May 2023, p. 368.
  • Ponn Maheswaranathan, "An Experiment to Verify the Current Dependence of Ampere's Law for a "Long" Straight Current-Carrying Conductor", TPT, Vol. 58, #8, Nov. 2020, p. 581.
  • Thomas B. Greenslade Jr, "Apparatus Named After Our Academic Ancestors-II", TPT, Vol. 49, # 1, January 2011, p. 28.
  • Keith Thompson, "The Current in a Wire", TPT, Vol. 47, # 2, Feb.  2009, p. 103.
  • Jeffrey Phillips, Jeff Sanny, "Phillips and Sanny's Response", TPT, Vol. 46, # 5, May 2008, p. 262.
  • Arthur Hovey, "The Biot-Savart Law -- Another Approach", TPT, Vol. 46, May 2008, p. 261.
  • Jeffrey A. Phillips, Jeff Sanny, "The Biot-Savart Law: From Infinitesimal to Infinite", TPT, Vol. 46, # 1, Jan. 2008, p. 44.
  • F.M. Gibson and Iain MacInnes.  "Symmetry in Electromagnetism - A New Magnetic Needle",  TPT, Vol. 38, # 5, p. 316, May 2000.
  • Paul Robinson, "Oersteds in the Hydrolytic Plant", TPT, Vol. 32, # 1, Jan. 1994, p. 57.
  • Paul G. Menz, "Correction", TPT, Vol. 32, # 2, Feb. 1994, p. 68.
  • Robert H. Romer,  "Oersted on the Subway",  TPT, Vol. 31, # 2, p.  92, February 1993.  
  • Sam J. Cipolla, "The Oersted Effect on the Overhead", TPT, Vol. 13, # 8, Nov. 1975, p. 475, reprinted in TPT, Vol. 40, # 9, p. 47, Jan. 2002.
  • Francis S. Lestingi, "Oersted Overhead ", TPT, Vol. 8, # 3, March 1970, p. 140.
  • Thomas B. Greenslade, Jr., "Oersted's Law Demonstrator", AJP, Vol. 89, #12, Dec. 2021, p. 1151.
  • B. J. Pernick,  "Simultaneous Measurement of the Straight Wire and the Earth's B Field", AJP, p. 90, Vol. 57, # 1, January 1989.
  • Ei-8:  Freier and Anderson,  A Demonstration Handbook for Physics.
  • B-105:  "Wire and Compass Needle",  DICK and RAE Physics Demo Notebook.
  • E-121, 122:  Richard Manliffe Sutton, Demonstration Experiments in Physics.
  • George M. Hopkins', Experimental Science, Volume Two, p. 113.
  • Yaakov Kraftmakher, "1.8, Oersted's Great Discovery", Experiments and Demonstrations in Physics, ISBN 981-256-602-3, p. 28.
  • Bill Franklin, "Abstract: Compass and Wire Holder for Detecting Currents",  2005 Apparatus Competition, Salt Lake City, UT.
  • Grant Mellor, "The Great Magnetic Discovery", Flying Tinsel, 1993, p. 96-99.
  • Rudolf F. Graf, "Relating Electricity with Magnetism (Electromagnetism)", Safe and Simple Electrical Experiments, p.86.
  • Joseph Frick, "# 303 - Magnetic Effects of the Current", Physical Technics: Or Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limmited Means, p. 351.






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