🤔 How it works …….. ⁉
How does a mobile charger work? What are its components?
Mobile chargers are working on simple principle. Conversion of AC to DC.
*STEP DOWNING* : In order to produce 5V output, it needs input voltage. That input voltage is 220 V AC that is what common domestic value being used in home. 220 V is valued down into 9V or other operating low voltage at which rectifier can work at its best.
*RECTIFYING* : This is the process which converts AC voltage to DC. But conversion will not be 100% done. There will be incompleteness in conversion which always happened as a practical limit that will be cleared in upcoming steps.
*SMOOTHING OR FILTERING* : Converted DC voltage has some ripples in it which means it has some AC properties in it which will be filtered by combination inductor and capacitor filter circuits. The output of this process will be almost as expected.
*REGULATOR* : After achieving DC without ripples, that 9V value have to be cut down to 5V. To do this, voltage regulator comes to the place. It gives constant 5V supply as an output for 9V input.
😳Why❓❓❓
Why father’s day is celebrated on 3rd Sunday in June?
In 1966, President Lyndon B. Johnson issued the first presidential proclamation honoring fathers, designating the third Sunday in June as Father’s Day. Six years later, the day was made a permanent national holiday when President Richard Nixon signed it into law in 1972.
💁🏻♂️ GK TODAY
The largest country in the world is RUSSIA
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BORN TODAY 🐣💐
(a) Rahul Gandhi (born 19 June 1970) is an Indian politician who was the President of the Indian National Congress from 16 December 2017 to 3 July 2019.
(b). Sudarshan Agarwal (19 June 1931 – 3 July 2019) was an Indian civil servant who served as Governor of Uttarakhand (2003–2007) and Sikkim (2007–2008).
IDIOMS & PHRASES:
Take a leaf out of one’s book
Imitate someone
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*ANTONYMS*
Traditional x nontraditional
*SYNONYMS*
Immunity = prerogative, privilege
🧬 HEALTH CARE: HOME REMEDIES🩺
HEALTH TIP:
Diseases such as influenza, pneumonia and tuberculosis are transmitted through the air. When an infected person coughs or sneezes, infectious agents may be passed on to others through airborne droplets. When you feel a cough or sneeze coming on, make sure you have covered your mouth with a face mask or use a tissue then dispose it carefully. If you do not have a tissue close by when you cough or sneeze, cover your mouth as much as possible with the crook (or the inside) of your elbow.
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Ch Narmada Naveen Kumar |
