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In the context of resistors and Ohm's law, what SI unit is used to measure electrical resistance?
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27. Resistors & DC Circuits
Resistors and Ohm's Law
Scelta multipla
In a simple electric circuit, which component is specifically designed to provide resistance and oppose the flow of current?
A
A capacitor
B
An ideal wire
C
A resistor
D
An inductor
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Understand the role of each component in an electric circuit: a capacitor stores electrical energy, an ideal wire offers negligible resistance, an inductor stores energy in a magnetic field, and a resistor opposes current flow.
Recall that resistance is the property of a component that limits or opposes the flow of electric current, converting electrical energy into heat.
Identify that the component designed specifically to provide resistance is called a resistor.
Recognize that capacitors and inductors do not primarily provide resistance; instead, they store energy in electric and magnetic fields respectively.
Conclude that the resistor is the component that provides resistance and opposes the flow of current in a simple electric circuit.
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