What is resistance? What is a resistor and.... What is ohm's law?
Answers
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).
Resistor
A device that does not allow electric current to flow through it freely in a circuit.
Ohm's Law
Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.
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✮ What is resistance?
Resistance is the property of a material by virtue of which it opposes the flow of electrons through the material.
It restricts the flow of the electron through the material. It is denoted by (R) and is measured in ohms (Ω).
✮ What is a resistor?
Resistors are used in virtually all electronic circuits and many electrical ones. Resistors, as their name indicates resist the flow of electricity, and this function is key to the operation most circuits.
✮ What is ohm's law?
Ohm’s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit.
The formula for Ohm’s law is V=IR.
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