What unit is equivalent to J/C?

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

Answer: (C)

The unit J/C, which represents joules per coulomb, is equivalent to the volt. This relationship stems from the definition of electric potential. A volt is defined as the difference in electric potential energy (measured in joules) per unit charge (measured in coulombs). Therefore, when one joule of energy is transferred per coulomb of electric charge, the potential difference is one volt.

Understanding this conversion is crucial when dealing with circuits and electrical components, as it helps to relate energy transferred in terms of electric current and voltage in various applications.

Other options, such as ohm, farad, and watt, represent different electrical concepts: ohms measure resistance, farads measure capacitance, and watts measure power. Each of these units serves distinct roles in electrical engineering, but they do not relate directly to energy per charge like the volt does. Thus, the only correct correlation with J/C is the volt.