29/03/2021
https://youtu.be/ebjwZNfFluA
LECTURE – 33-ENVIRONMENTAL STUDIES (POPULATION EXPLOSION) FOR B.COM SEM – 1
This is the 33 rd lecture on Environmental Studies. This lecture is based on Human population and Environment which is the 5th module in the subject Environm...
29/03/2021
https://youtu.be/kNMktCZFlKg
LECTURE 127 – DIGITAL ELECTRONICS –BIASED NPN TRANSISTOR - BCA SEM1
When external voltage is applied to an npn transistor, it is said to be a biased npn transistor. Depending on the polarity of the applied voltage, the npn tr...
29/03/2021
https://youtu.be/pvTacP5ovHY
LECTURE 126 – DIGITAL ELECTRONICS –NPN TRANSISTOR - BCA SEM1
When a single p-type semiconductor layer is sandwiched between two n-type semiconductor layers, an npn transistor is formed. The npn transistor has three ter...
29/03/2021
https://youtu.be/1TKVqyaPeuI
LECTURE 125 – DIGITAL ELECTRONICS –BIPOLAR JUNCTION TRANSISTOR OPERATION MODES - BCA SEM1
Transistors are three terminal active devices made from different semiconductor materials that can act as either an insulator or a conductor by the applicati...
29/03/2021
https://youtu.be/DIjhHOHWwTM
LECTURE 124 – DIGITAL ELECTRONICS –BIPOLAR JUNCTION TRANSISTOR - BCA SEM1
Bipolar transistor integrated circuits were the main active devices of a generation of mainframe and mini computers, but most computer systems now use integr...
29/03/2021
https://youtu.be/2sEofBqlR0I
LECTURE 123 – DIGITAL ELECTRONICS –ZENER DIODE AS VOLTAGE REGULATOR - BCA SEM1
A Zener diode is one of the specially designed diodes that predominately works in reverse biased conditions. They are more heavily doped than ordinary diodes...
23/03/2021
https://youtu.be/9pOFu6F-5Mk
LECTURE 121– DIGITAL ELECTRONICS –BRIDGE RECTIFIER WITH FILTER - BCA SEM1
The bridge rectifier is made up of four diodes namely D1, D2, D3 and D4. The input signal is applied across the two terminals A and B while the DC output is ...
23/03/2021
https://youtu.be/M0tj0bxEidg
LECTURE 120– DIGITAL ELECTRONICS –BRIDGE RECTIFIER - BCA SEM1
A bridge rectifier is a type of full wave rectifier which uses four or more diodes in a bridge circuit configuration to efficiently convert the Alternating C...
23/03/2021
https://youtu.be/F2WsNMJ72aA
LECTURE 119– DIGITAL ELECTRONICS – FULL WAVE RECTIFIER WITH FILTER - BCA SEM1
The filter is an electronic device that converts the pulsating Direct Current into pure Direct Current.The filter is made up of a combination of electronic c...