970. Solar Bulb in Plastic Case : Working Model with solar cell and light emmiting diode.
971. Solar Fan in Plastic Case : This working model is in two part box. The part with solar cell is placed in sun light and Fan portion is kept inshade or class room.
972. Solar Kit with NI-CD Cells : The unit consists of Solar Bulb, Solar Fan and Solar Meter. Battery is provided along with the unit which can be charged by keeping Solar Panel in sun. The unit shows the conversion of Electrical Energy in Mechanical Energy, sound Energy and Light Energy.
973. Generation of Electricity : By moving a magnet in acoil. Working model for demonstration purpose.
974. Solar Pump : Working Model
975. Faradays Law
980. Resistance Coils (Superior)
(a) In bakelite case (b) Transparent case (Parco type)
981. High Resistances : Enclosed in bakelite tough case, with terminals and short circuiting plug. Any single value 1k, 2k, 5k,10k or 15k ohms.