They are better than the regular cheap saws because they sharper and more effective blades and might cost more but very reasonable and better in construction and that's why electric saws seems BETTER.
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The kinds of electric charge are positive charge and negative charge
current has five effects. 1. physical effects 2. xray effects 3. heating effects 4. chemical effects 5.magnetic effects.
Heating Effect.
There are three effects produced by an electric current:heating effectmagnetic effectchemical effect
Electrons are a negative charge. Using conventional notation current flows from positive to negative poles of a battery, for example. In electron flow convention the electrons flow from negative to positive.