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Logic Gates — Flashcards

ICSE · Class 12 · Physics

30 flashcards for Logic Gates (ICSE Class 12 Physics) to test yourself on key terms and facts. Sample: "State the definition of logic gates."

70 questions30 flashcards5 formulas & key relations5 concepts

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30 Flashcards·
Definition of logic gatesTruth tableOR gateAND gateNOT gateOR gate truth tableAND gate truth table
Card 1Definition of logic gates

State the definition of logic gates.

Answer

Logic gates are digital circuits which work according to some logical relationship between input and output signals.

Card 2Truth table

What is the truth table of a logic gate?

Answer

A truth table is a table that shows all possible input combinations and the corresponding outputs for a logic gate.

Card 3OR gate

State the Boolean expression for an OR gate.

Answer

OR gate: A+B=Y Meaning: Y is 1 if A or B or both are 1. Inputs: A, B = 0 or 1 Output: Y = 0 or 1…

Card 4AND gate

State the Boolean expression for an AND gate.

Answer

AND gate: A·B=Y Meaning: Y is 1 only when both A and B are 1. Inputs: A, B = 0 or 1 Output: Y = 0 or 1…

Card 5NOT gate

State the Boolean expression for a NOT gate.

Answer

NOT gate: Ā=Y Meaning: Y is the negation of A. If A=0, then Y=1. If A=1, then Y=0.

Card 6OR gate truth table

A two-input OR gate has inputs A=0 and B=1. Find the output.

Answer

Given: A=0, B=1 Formula: A+B=Y Step 1: 0+1=1 Answer: Y=1 Verification: OR gate gives output 1 if either input is 1.

Card 7OR gate truth table

A two-input OR gate has inputs A=1 and B=1. Find the output.

Answer

Given: A=1, B=1 Formula: A+B=Y Step 1: 1+1=1 in OR logic Answer: Y=1 Verification: OR gate output is 1 when either or both inputs are 1.

Card 8AND gate truth table

A two-input AND gate has inputs A=0 and B=1. Find the output.

Answer

Given: A=0, B=1 Formula: A·B=Y Step 1: 0·1=0 Answer: Y=0 Verification: AND gate gives 1 only when both inputs are 1.

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Frequently Asked Questions

What are the important topics in Logic Gates for ICSE Class 12 Physics?
Key topics in Logic Gates include Signals, Circuits, and ICs, Logic Gates and Boolean Algebra, OR Gate, AND Gate, and NOT Gate, NAND and NOR Gates. Study these first, then practise questions on each for the ICSE Class 12 board exam.
How many flashcards are available for Logic Gates?
There are 30 flashcards for Logic Gates covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Logic Gates for the ICSE Class 12 board exam?
Learn the core ideas first, then work through the 70 practice questions on Logic Gates. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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