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Class 12
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Physics
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Semiconductor Electronics: Materials, Devices and Simple Circuits
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Logic Gates
Logic Gates
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Basic Knowledge of Logic Gates: Basic Gates
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Introduction to Logic Gates and Boolean Expressions
13 mins
Combination of Logic Gates
10 mins
Quick Summary With Stories
Introduction to Logic Gates and Boolean Expressions
3 mins
Basic Knowledge of Logic Gates
3 mins
Problems on Logic Gates
3 mins
Important Questions
Write the logic symbol and truth table of NAND gate.
Medium
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How will you obtain OR, AND gates from the NAND and NOR gates? Write symbol, Boolean formula and truth table.
Medium
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The logic circuit shown below has the input waveforms 'A' and 'B' as shown. Pick out the correct output waveform.
Hard
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Explain why NAND gate is known as universal gate.
Easy
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Which logic gates is represented by the following combination of logic gates?
Medium
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The Boolean expression for NOR gate is:
Hard
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When all the inputs of a NAND gate are connected together, the resulting circuit is:
Medium
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The Boolean expression for NAND gate is -
Hard
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In the circuit below,
$A$
and
$B$
represent two inputs and
$C$
represents the output.
The circuit represents
Medium
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For the logic circuit shown, the truth table is:
Medium
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