Syringe generator - telugu

This wonderful syringe generator can be made in just 15 minutes. place 2 strong neodymium magnets in the barrel of a plastic syringe. the rubber piston will make the end stopper. now wind 700-1000 turns of thin insulated copper wire on the barrel. scrape the ends of insulation and attach a led. hold the syringe in one hand and shake it to move the magnets. the moving magnetic field will produce a small current in the coil -- enough to light up an led.