What unit is used to measure electrical resistance?

What unit is used to measure electrical resistance?

• A. Volts
• B. Amperes
• C. Ohms
• D. Watts

Answer: (C)

The unit used to measure electrical resistance is Ohms. Resistance is a measure of how much a material opposes the flow of electric current. When an electric current passes through a conductor, the resistance affects how much current can flow for a given voltage. According to Ohm's Law, the relationship between voltage (measured in volts), current (measured in amperes), and resistance can be expressed with the formula: V = I × R, where V is voltage, I is current, and R is resistance. This highlights the importance of Ohms in understanding and calculating electrical circuits. Other units mentioned, such as volts and amperes, are measurement units for voltage and current, respectively, while watts measure electrical power, which is related but distinct from resistance.

The unit used to measure electrical resistance is Ohms. Resistance is a measure of how much a material opposes the flow of electric current. When an electric current passes through a conductor, the resistance affects how much current can flow for a given voltage. According to Ohm's Law, the relationship between voltage (measured in volts), current (measured in amperes), and resistance can be expressed with the formula: V = I × R, where V is voltage, I is current, and R is resistance. This highlights the importance of Ohms in understanding and calculating electrical circuits. Other units mentioned, such as volts and amperes, are measurement units for voltage and current, respectively, while watts measure electrical power, which is related but distinct from resistance.