Search Results for: Spent primary cells
spherical mirrors and lenses. human eye. natural and artificial magnets, properties of a magnet, earth as a magnet. static and current electricity, conductors and non-conductors, ohm's law, simple electrical circuits, heating, lighting and magnetic effects of current, measurement of electrical power, primary
and secondary cells, use of x-rays. general principles in the working of the following : simple pendulum, simple pulleys, siphon, levers, balloon, pumps, hydrometer, pressure cooker, thermos flask, gramophone, telegraphs, telephone, periscope, telescope, microscope, mariner's compass; lightening conductors...
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