Farad is the unit of which electrical property?

Capacitance is an essential property in electrical circuits that quantifies how much electric charge (Q) a component can store for a given potential difference (V) across it. Mathematically, it is expressed as:

C=QVC = \frac{Q}{V}C=VQ

Where:

• 
  

  C = capacitance in farads (F)

  
  


• 
  

  Q = charge in coulombs (C)

  
  


• 
  

  V = voltage in volts (V)

  
  

A capacitor is a device designed to store electrical energy in the form of an electric field between two conductive plates separated by an insulating material called a dielectric. The greater the capacitance, the more charge the capacitor can store at the same voltage.

The farad is a very large unit; practical capacitors often use microfarads (μF), nanofarads (nF), or picofarads (pF). For example, a 1 farad capacitor can store 1 coulomb of charge when a 1-volt potential is applied across it.

Comparing the options:

• 
  

  Inductance → measured in henry (H), not farad.

  
  


• 
  

  Voltage → measured in volts (V).

  
  


• 
  

  Capacitance → correct, measured in farads (F).

  
  


• 
  

  None of these → incorrect.

  
  

Capacitance plays a key role in many electronic applications, including:

• 
  

  Smoothing voltage in power supplies.

  
  


• 
  

  Tuning circuits in radios and televisions.

  
  


• 
  

  Timing circuits in oscillators.

  
  

In summary, farad (F) is the SI unit of capacitance (Option C), representing the ability of a component to store electrical charge per unit voltage, making it a fundamental concept in electricity and electronics.