A Laboratory Course in Physics of the Household to Accompany Lyndes Physics of
The book A Laboratory Course in Physics of the Household to Accompany Lyndes Physics of was written by author Carleton John Lynde Here you can read free online of A Laboratory Course in Physics of the Household to Accompany Lyndes Physics of book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Laboratory Course in Physics of the Household to Accompany Lyndes Physics of a good or bad book?
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Reverse the direction of the current. Is the direction the arma- ture revolves reversed? Why not? Is it because the current is reversed in both the armature and the field magnet? Reverse the direction of the current through the field magnet only, as follows : Disconnect the field magnet wire from the bind- ing post and connect the other field magnet wire to this post. Connect the cell. Is the direction in which the armature revolves reversed ? Why ? Exercise 23. Electric Motors. Examine one or ...more of the school motors and identify the field magnet, armature, brushes, and commutator, or rings if the motors run on alternating current. Consult page 183, Physics of the Household. Examine the name plate on each motor and learn the voltage for which it is made and the amperage of the current it uses. Calculate the power of the current in watts and horse power, remembering that : watts = volts X amperes, and that 746 watts = i horse power. Consult pages 208-210, Physics of the Household. 82 LABORATORY COURSE IN PHYSICS Calculate the number of 40-watt tungsten lamps which could be lighted with the current used in the motor.
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