What is resistor measured in?

What is resistor measured in?

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

Answer: (C)

Resistors are defined by their resistance, which measures how much they oppose the flow of current. The unit of this opposition is the ohm, symbolized by the Greek letter omega (Ω). This is the property you identify when you specify a resistor’s value, and Ohm’s Law ties voltage, current, and resistance together in V = I × R. Volts measure electrical potential difference, amperes measure current, and watts measure power. A resistor isn’t described by volts, amps, or watts as its defining unit, even though those quantities can be related to the resistor’s value through Ohm’s Law.

Resistors are defined by their resistance, which measures how much they oppose the flow of current. The unit of this opposition is the ohm, symbolized by the Greek letter omega (Ω). This is the property you identify when you specify a resistor’s value, and Ohm’s Law ties voltage, current, and resistance together in V = I × R.

Volts measure electrical potential difference, amperes measure current, and watts measure power. A resistor isn’t described by volts, amps, or watts as its defining unit, even though those quantities can be related to the resistor’s value through Ohm’s Law.