The utility model discloses a sliding rheostat
simulation demonstration teaching aid relates to physical teaching aid technical field, the utility model discloses a support board is equipped with two, and two support boards fixedly arranged with plastic
pipe, vertical board, two vertical boards symmetry and fixedly set up in the both ends of plastic
pipe, wherein, vertical board one side wall is passed through and is opened to have installed groove hole, and the
copper pipe is fixedly installed in installed groove hole inside, and the plastic pipe outer wall equidistance is equipped with a plurality of first
LED lamp area, and a plurality of first
LED lamp area between are parallelly connected. The utility model discloses a sliding rheostat
simulation demonstration teaching aid, through the sliding shielding of shading pole to
light hole, can simulate the effect that resistance changes in sliding rheostat, and then influence the
light signal intensity received by photosensitive sensor, lead to the bright and dark change of first
LED lamp area, and cooperate the use of second LED lamp area, be convenient for respectively demonstrating two kinds of connection method of corresponding sliding rheostat, and this kind of direct demonstration mode helps student to understand the working principle of sliding rheostat.