Difference Between Capacitor And Inductor in tabular form

One of the main differences between a capacitor and an inductor is that a capacitor opposes a change in voltage while an inductor opposes a change in the current. Furthermore, the inductor stores energy in the form of a magnetic field, and the capacitor stores energy in the form of an electric field.
The Capacitor and Inductor are both electrical components used to oppose changes in current in the electrical and electronic circuits. These two components are passive elements, which draw power from the store, circuit, and then discharge. The applications of these components are widely used in alternative current (AC) and also in signal filtering applications.

The main difference between a capacitor and an inductor is that an inductor is used to store the energy in the form of a magnetic field, whereas a capacitor stores the energy in the form of an electric field. This article gives an overview of what is a capacitor, and inductor, their differences, types, uses, and characteristics.

What are a Capacitor and Inductor?

Capacitors and inductors are electronic components that can store energy supplied by a voltage source. A capacitor stores energy in an electric field; an inductor stores energy in a magnetic field.

The capacitor is an electrical component that is made up of two conductors alienated by an insulator. When a potential difference is supplied to both terminals, an electric field is formed and electric charges are stored. Based on the characteristics, the capacitor is widely used to build electronic circuits.

As a die electric substance, any non-conducting substance can be used. But, some of the preferred dielectric materials are Teflon, Mylar, porcelain, mica, and cellulose. A capacitor is defined based on the material chosen like electrode or dielectric. The dielectric material is mainly used to help in storing electrical energy. The capacitor’s value can be determined by the size of the terminals, the distance between the two terminals, and the kind of material used.

The Different Types of The Capacitor

  • Electrolytic Capacitor.
  • Mica Capacitor.
  • Paper Capacitor.
  • Film Capacitor.
  • Non-Polarized Capacitor.
  • Ceramic Capacitor.

Difference Between Capacitor and Inductor In Tabular Form

Capacitor Inductor
capacitor resists changes in voltage inductor resists changes in current
voltage in a capacitor doesn’t change instantaneously current in an inductor doesn’t change instantaneously
The unit of capacitance is Farad The unit of inductance is Henry
Voltage lags current by π/2 Current lags voltage by π/2
The capacitor functions as a short circuit for alternating current Inductor functions as a short circuit for direct current
Energy is stored in the electric field Energy is stored in the magnetic field


Uses of Capacitor

  • High Voltage Electrolytic capacitor is used in power supplies.
  • An Axial Electrolytic capacitor is used in a lower voltage smaller size for general-purpose where huge capacitance principles are needed.
  • High Voltage disk ceramic capacitor is a small size & the value of capacitance and excellent tolerance characteristics.
  • The Metalised Polypropylene capacitor is a small size for values up to 2µF and has good reliability.
  • The surface mount capacitor is a relatively high capacitance for size attained by several layers. In fact, numerous capacitors are in parallel.

Uses of Inductor

  • Inductors are extensively used in AC applications like TV, radio, etc.
  • Chokes – The main property of an inductor is used in power supply circuits where AC mains supply desires to be changed to a DC supply.
  • Energy store – It is used to make the spark that catches fires the petrol in automobile engines.
  • Transformers– Inductors with a distributing magnetic lane can be united to form a transformer.

Units of Measurement

  • The units of capacitance are measured in farads denoted by F. It is equal and identical to a [Ampere-second Volt]. Since an Ampere is a [Coulomb second], we can also say that F = CV
  • The Inductance is the value of an Inductor and it is measured in Henries. Actually, It is the SI unit of Inductance and equal to Volt-second Ampere.

Characteristics of Capacitor and Inductor

Capacitor Inductor
Capacitors connected in parallel unite like resistors in series Inductors in parallel unite like resistors in parallel
Capacitors in series unite like resistors in parallel The Inductor in series unites like a resistor in series

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