What unit is used to measure electrical charges?

What unit is used to measure electrical charges?

• A. Joule
• B. Coulomb
• C. Volt
• D. Ohm

Answer: (B)

The unit used to measure electrical charges is the coulomb. A coulomb is defined as the amount of electric charge transferred by a constant current of one ampere in one second. It quantifies the total charge carried by numerous particles, such as electrons, and is fundamental in the study of electrical phenomena.

The other units mentioned have different specific applications: a joule measures energy, a volt measures electric potential or voltage, and an ohm measures electrical resistance. Each of these units plays an important role in understanding electrical systems, but when it comes specifically to quantifying electric charge, the coulomb is the appropriate and correct choice.