definition of conductor, digestion, circuit digram
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In physics and electrical engineering, a conductor is an object or type of material that allows the flow of charge (electrical current) in one or more directions. Materials made of metal are common electrical conductors. Electrical current is generated by the flow of negatively charged electrons, positively charged holes, and positive or negative ions in some cases.
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- A material or an object that conducts heat, electricity, light, or sound. Electrical conductors contain electric charges (usually electrons) that are relatively free to move through the material; a voltage applied across the conductor therefore creates an electric current.
- Digestion is how your body turns food you eat into nutrients it uses for energy, growth, and cell repair. The digestive tract (or gastrointestinal tract) is a long twisting tube that starts at your mouth and ends at your anus.
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