Which among the following is not a passive component?

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 2
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  1. Capacitor
  2. Resistor
  3. Inductor
  4. Diode

Answer (Detailed Solution Below)

Option 4 : Diode
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Detailed Solution

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Passive Element:

  • The element which receives or absorbs energy and then either converts it into heat (R) or stored it in an electric (C) or magnetic (L) field is called passive element
  • Do not need any form of electrical power to operate
  • Not able to control the flow of charge
  • Cannot amplify, oscillate, or generate an electrical signal
  • Used for energy storage, discharge, oscillating, filtering and phase shifting applications
  • Examples: Resistor, inductor, capacitor

 

Important:

Active Element:

  • The elements that supply energy to the circuit is called an active element
  • These have an ability to control the flow of charge
  • Used for current control and voltage control applications
  • Examples: Battery, voltage source, current source, diode
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