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National Bird Day: Why Birds Matter to Us

National Bird Day is celebrated every year on 5 January . This day is observed to spread awareness about birds, their importance in nature, and the need to protect them. Birds are beautiful living beings and play a very important role in keeping our environment healthy. Origin of National Bird Day National Bird Day was first celebrated in the year 2002 . It was started by bird lovers and environmental groups to protect birds from dangers like deforestation, pollution, and illegal hunting. The main aim of this day is to teach people, especially students, why birds are important and how we can help save them. Why Is National Bird Day Celebrated Every Year? National Bird Day is celebrated every year because many bird species are disappearing due to human activities. Cutting trees, using plastic, pollution, and climate change are harming birds and their homes. This day reminds us that: Birds need protection Nature should be respected Everyone has a responsibil...
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Shunt capacitor filter


  • The output obtained from a rectifier is unidirectional, but it is not steady.
  • The output of a rectifier is found to be in the form of pulse.
  • It consists of a pure d.c. voltage with superimposed a.c. components, known as ripples.
  • To remove the ripples or a.c. components available in the output obtained from the rectifier circuit, we introduce an electrical circuit between the rectifier and a load. This electrical circuit is known as filter.
  • The filters minimize the ripples available in the output either by passing or blocking the a.c. components and provide an almost a constant output voltage.
  • In this lecture we have discussed about the basic idea about filter, types of filters, and the complete description about the shunt capacitor filter. Since the lecture shunt capacitor filter is explained here in both Hindi and English language, so it is better to understand the student of Hindi and English mediums. This is bilingual lecture and is related to electronics.

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