Question

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Answer 1

1 ) An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space.

2) List of current sources includes: generators, batteries, solar cells, fuel cells, capacitors, inductors, static discharge, and piezoelectricity.

3)The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.

4) When an electric cell is connected to the circuit, the chemical energy inside the cell gets converted to electrical energy, which flows in form of current through the circuit. Further this electrical energy can be converted into mechanical energy, sound energy or any other desirable form of energy.

5) A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm.

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