Slider rheostat is designed for smooth change of resistance in the electrical circuit and for obtaining from the current source (potentiometer scheme) of different voltages within the voltage supplied to the terminals of the rheostat, when conducting demonstration experiments on electrodynamics. Total resistance of the rheostat, Ohm. 100 Maximum load current (not more than 10 min), A.. 0,7 The set includes: - rheostat - 1 pc, - operation manual - 1 pc. The device is a wire variable resistance on a ceramic frame, the leads of which are connected to universal clamps on the plastic housing.