SLIDING VARIABLE RESISTOR AND WHEATSTONE BRIDGE AND POTENTIOMETER EXPERIMENT USING THE SAME

摘要

invention vernier caliper is attached to the sliding potentiometer and test it using Wheatstone bridge and potentiometer devices relates to , coated on a bobbin is provided to dissipate the heat resistance wire is wound with a coil form by a resistor , was fundamentally solve the problem of the prior heating , by selecting the appropriate thickness of the diameter and resistance of the bobbin , coil -type slide type can more accurately find the zero point of the galvanometer with a variable resistor , while facilitating the length ratio of the resistance to the zero position of the galvanometer with vernier calipers , and the effect that can be measured accurately , Wheatstone bridge test apparatus using the same , and potentiometer experimental device also has an effect that improves the accuracy and precision of the measurement .