Which unit is used to measure electrical capacitance?

• A. Farad (F)
• B. Henries (H)
• C. Volts (V)
• D. Amperes (A)

Answer: (A)

The unit used to measure electrical capacitance is the Farad (F). Capacitance quantifies a capacitor's ability to store electrical charge. One Farad is defined as the capacitance required to store one coulomb of charge at a potential difference of one volt. The Farad is a relatively large unit, and in most practical applications, capacitance is often expressed in microfarads (µF) or picofarads (pF), which are subunits of the Farad.

Understanding capacitance and its measurement in Farads is fundamental in various electrical and electronic applications, from power supply systems to timing circuits and signal filtering. The other units listed represent different electrical quantities: Henries for inductance, volts for voltage, and amperes for current. Each of these plays a distinct role in electrical theory and practices but does not pertain to capacitance.