What is the correct unit for the 7000-ohm supervisory resistor?

What is the correct unit for the 7000-ohm supervisory resistor?

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

Answer: (C)

Resistance is measured in ohms (Ω). A component labeled 7000-ohms expresses its resistance in that unit; you could also call it 7 kilo-ohms, but the unit stays ohms. Amperes, volts, and watts correspond to current, voltage, and power, not resistance, so they don’t describe a resistor’s value. This unit ties directly into Ohm’s law, V = I × R, letting you relate voltage, current, and resistance. For example, with 5 volts across a 7000-ohm resistor, the current would be about 0.714 milliamps, showing how the resistance unit is used in circuit calculations.

Resistance is measured in ohms (Ω). A component labeled 7000-ohms expresses its resistance in that unit; you could also call it 7 kilo-ohms, but the unit stays ohms. Amperes, volts, and watts correspond to current, voltage, and power, not resistance, so they don’t describe a resistor’s value. This unit ties directly into Ohm’s law, V = I × R, letting you relate voltage, current, and resistance. For example, with 5 volts across a 7000-ohm resistor, the current would be about 0.714 milliamps, showing how the resistance unit is used in circuit calculations.