Question

What is the unit of electrical resistance?

• A. Ampere
• B. Volt
• C. Ohm
• D. Watt

Hint:

Remember that the unit of resistance is Ohm, which is defined as one volt per ampere.

Answer 1

The Correct Option is C

The unit of electrical resistance is the Ohm (Ω), named after the German physicist Georg Simon Ohm. The resistance of a conductor is defined as the ratio of the voltage applied to the current that flows through it: \[ R = \frac{V}{I} \] where \( R \) is the resistance, \( V \) is the voltage, and \( I \) is the current.
Therefore, the correct answer is: \[ \boxed{(C) \, \text{Ohm}} \]