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lectricity is an important source of energy in the modern times.
Electricity is used in our homes, in industry and in transport.
For example, electricity is used in our homes for lighting,
operating fans and heating purposes (see Figure 1). In industry,
electricity is used to run various types of machines, and in transport
sector electricity is being used to pull electric trains. In this chapter,
we will discuss electric potential, electric current, electric power and
the heating effect of electric current. In order to understand electricity,
we should first know something about the electric charges. These
are discussed below.
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electricity used for for lightning in our homes
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