What is the definition of an ohm?

What is the definition of an ohm?

• A. A unit measuring voltage
• B. A unit that measures the resistance of electric current
• C. A unit measuring wattage
• D. A unit measuring electric current flow

Answer: (B)

The definition of an ohm is indeed a unit that measures the resistance of electric current. In electrical terms, resistance is the opposition that a material offers to the flow of electric current. The unit of resistance, the ohm, quantifies how much this resistance hinders the flow of electrons in a circuit. According to Ohm's Law, which is a fundamental principle in electronics, the relationship between voltage (volts), current (amperes), and resistance (ohms) can be described by the equation V = I × R. Here, 'V' represents voltage, 'I' is the current flowing through the circuit, and 'R' is the resistance measured in ohms. Understanding this relationship is crucial for designing and troubleshooting electrical circuits. This correct definition highlights the significance of resistance in determining how much current will flow through a circuit for a given voltage, making the unit ohm essential in electrical science.

The definition of an ohm is indeed a unit that measures the resistance of electric current. In electrical terms, resistance is the opposition that a material offers to the flow of electric current. The unit of resistance, the ohm, quantifies how much this resistance hinders the flow of electrons in a circuit.

According to Ohm's Law, which is a fundamental principle in electronics, the relationship between voltage (volts), current (amperes), and resistance (ohms) can be described by the equation V = I × R. Here, 'V' represents voltage, 'I' is the current flowing through the circuit, and 'R' is the resistance measured in ohms. Understanding this relationship is crucial for designing and troubleshooting electrical circuits.

This correct definition highlights the significance of resistance in determining how much current will flow through a circuit for a given voltage, making the unit ohm essential in electrical science.