Question:
The unit of electrical resistance is
The unit of electrical resistance is
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Resistance is measured in ohm \((\Omega)\), voltage in volt, current in ampere, and power in watt.
Updated On: May 27, 2026
- Ampere
- Volt
- Ohm
- Watt
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The Correct Option is C
Solution and Explanation
Concept:
Electrical resistance is the opposition offered by a conductor to the flow of electric current.
Step 1: From Ohm's law: \[ V=IR \]
Step 2: Rearranging: \[ R=\frac{V}{I} \]
Step 3: The unit of voltage is volt and the unit of current is ampere. So: \[ \text{Unit of }R=\frac{\text{Volt}}{\text{Ampere}} \] \[ =\Omega \]
Step 4: The SI unit of resistance is ohm. Therefore: \[ \boxed{\text{Ohm}} \]
Step 1: From Ohm's law: \[ V=IR \]
Step 2: Rearranging: \[ R=\frac{V}{I} \]
Step 3: The unit of voltage is volt and the unit of current is ampere. So: \[ \text{Unit of }R=\frac{\text{Volt}}{\text{Ampere}} \] \[ =\Omega \]
Step 4: The SI unit of resistance is ohm. Therefore: \[ \boxed{\text{Ohm}} \]
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