What is the formula for Ohm's law?

What is the formula for Ohm's law?

• A. V = I + R
• B. V = I x R
• C. V = I / R
• D. V = R / I

Answer: (B)

The formula for Ohm's law is expressed as V = I x R, where V represents voltage, I represents current, and R represents resistance. This relationship shows that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature and material of the conductor remain constant. This means that if you know the current and the resistance, you can easily calculate the voltage. In practical applications, this principle allows engineers and technicians to determine how much electrical pressure (voltage) is needed to push a specified amount of current through a certain resistance, which is fundamental in circuit design and analysis.

The formula for Ohm's law is expressed as V = I x R, where V represents voltage, I represents current, and R represents resistance. This relationship shows that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature and material of the conductor remain constant. This means that if you know the current and the resistance, you can easily calculate the voltage.

In practical applications, this principle allows engineers and technicians to determine how much electrical pressure (voltage) is needed to push a specified amount of current through a certain resistance, which is fundamental in circuit design and analysis.