Define the Resistance and the affecting Resistance of a material
Answers
Answer:
Resistance is the property of the material that restricts the flow of electrons. There are four factors affecting resistance which are Temperature, Length of wire, Area of the cross-section of wire and nature of the material.
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What is resistance?
Resistance is a measure of the opposition to current flow in an electrical circuit.
Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). Ohms are named after Georg Simon Ohm, a German physicist who studied the relationship between voltage, current and resistance. He is credited for formulating Ohm's Law.
Resistance measurements are normally taken to indicate the condition of a component or a circuit.
The higher the resistance, the lower the current flow. If abnormally high, one possible cause (among many) could be damaged conductors due to burning or corrosion. All conductors give off some degree of heat, so overheating is an issue often associated with resistance.
The lower the resistance, the higher the current flow. Possible causes: insulators damaged by moisture or overheating.
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