Question

Volt per ampere is called

• A. watt
• B. ohm
• C. coulomb
• D. joule

Answer 1

The Correct Option is B

The unit of measure for electrical resistance is the "ohm." It is defined as the resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces a current of 1 ampere through the conductor. Therefore, volt per ampere is called ohm. 
This relationship can be represented by Ohm's Law, which is expressed as:

R = \(\frac{V}{I}\)

 

where \(R\) is the resistance in ohms, \(V\) is the voltage in volts, and \(I\) is the current in amperes. 
Hence, among the given options watt, ohm, coulomb, and joule, the correct answer is ohm.

Answer 2

We know from Ohm's Law:

\( V = IR \)

Rewriting this, we get:

\( \frac{V}{I} = R \)

So, Volt per Ampere is equal to Resistance.

The SI unit of resistance is ohm (Ω).

Final Answer: ohm