Tag: Resistance in electrical circuits
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Types of Resistors
Resistors perform two basic functions in a circuit: they limit current flow and set voltage levels within a circuit. We have various kinds of resistors e.g. fixed resistors, variable resistors, digitally adjustable resistors, photoresistors, fusible resistors, etc. Generally, resistors can be broadly categorized as: Fixed Resistors Fixed resistors are those whose value cannot be changed…
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Resistance and Resistivity
The resistance of an electrical conductor depends on 4 factors, namely: The resistance, R, is directly proportional to length L of a conductor. Resistance, R, is inversely proportional to cross-sectional area a, of a conductor. Because R is proportional to L and, R is proportional to By inserting a constant of proportionality into this relationship,…