Description:It is an experimental facility for children to experiment and learn the Physics, it can slide resistance.Item: Slide RheostatSize: about 16cmUsage:1. When the current in the circuit is used to adjust the intensity , it should slide rheostat in series with the circuit, and the first raised to the maximum slip resistance rheostat , connect the power supply , then slide the conductive brush , gradually reducing resistance , so that the current strength suitable amount is gradually increased .2. When used to adjust the voltage of the circuit between two points , and the circuit should varistor connected in parallel , and the first rheostat resistance to minimum , connect the power supply , then slide the conductive brush , and gradually increase the resistance , the circuit ends voltage is gradually increased to the appropriate value.Note:1. when the rheostat use should not be too close to the heat source.2. rheostat long-term use may cause poor contact oxidation insulation in contact with the resistance wire brush , then wipe away the oxide layer must be used. Long love vibration and other reasons, it may appear screw loose, loose slider and other illnesses , pay attention to check eliminated.3. rheostat should not exceed the rated maximum load.Package Included:1x Slide Rheostat1x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.