An electric current flowing through a circuit causes a magnetic field. This is due to the movement of electric charges, usually electrons, bitcoin gold double spending in the circuit. The m
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Circuits








What are the two ways in which a circuit may be arranged?

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A circuit can be arranged in either a series or parallel configuration. In a series circuit, the components are connected in a single path, so the same current
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Circuits








What is a resistor whose value can varied over a range of value called?

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Variable resistor. The value of the variable resistor can be changed at any given moment.