SECTION 2

Digital Logic Gates

Work of a logic gate is to perform a logical operation on one or more logic inputs and give us a single logic output. This logic is called Boolean logic. Logic gates are generally applied electronically using transistors or diodes. In electronic logic, a logic level is represented by a voltage or current. Below are given the gates used in electronics.

The AND gate is a logic gate that gives an output of '1' only when all of its inputs are '1'.

The OR gate is a logic gate that gives an output of '0' only when all of its inputs are '0'

The NOT gate is a logic gate that gives an output that is opposite the state of its input.

The NAND gate is an AND gate with a NOT gate at its end

The NOR gate is an OR gate with a NOT gate at its end.

In XNOR The output is high when both inputs A and B are high

In XOR The output is LOW when both inputs A and B are high

Now let us see what are capacitors, resistors, diodes & transistors in electronics circuits and what are their applications.

After going through above sections you must be clear with the Basic Electronics Terms & Symbols. Now go through this section where you will know more about voltage, current & OHMS Laws. Just give a reading to every topic one after the other.

SECTION 3

OTHER IMPORTANT BASIC ELECTRONICS TOPICS IN THIS ELECTRONICS TUTORIAL

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Indian Scientists Discoveries and Inventions

Abdul Kalam

Major part in developing many missiles of India including Agni and Prithvi

Aryabhata

Aryabhata was a great mathematician who worked on the approximation for Pi ( $π$ ).Born in 476 AD in Kerala, he studied in Nalanda University near Kusumaputra, now Patna. He gave the value of Pi - 3.141.He also formulated the tables of sines.He devised the rules of operation for 'zero'. He also worked on algebra.

Bhaskara

Bhaskara introduced the world to the concept of infinity the concept that any term divided by zero is infinity and the sum of any term and infinity is infinity. He also founded Differential Calculus.

Bhramagupta

He had a good knowledge of Number Systems.

"When zero is added to a number or subtracted from a number, the number remains unchanged; and a number multiplied by zero becomes zero."

Srinivas Ramanujan

Contributions to mathematical analysis, number theory, infinite series and continued fractions.

ABC of Electronics

SECTION 1

Basics of Electronics:

Electronics is the flow of electrons which we call as charge through semiconductors.

What is Electric Current

Electric Current is the flow of charge.

Electronic Symbols

Collection of Electronics Symbols with their meaning.

SECTION 2

Digital Logic Gates

HYSTERESIS

Hysteresis Loop shows relation between Magnetic Flux Density and Magnetizing Force as shown in above diagram