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  1. >>Class 12
  2. >>Physics
  3. >>Semiconductor Electronics: Materials, Devices and Simple Circuits
  4. >>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
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Combination of Logic Gates
10 mins

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Introduction to Logic Gates and Boolean Expressions

3 mins

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Basic Knowledge of Logic Gates

3 mins

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Problems on Logic Gates

3 mins

Important Questions

Write the logic symbol and truth table of NAND gate.

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How will you obtain OR, AND gates from the NAND and NOR gates? Write symbol, Boolean formula and truth table.

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The logic circuit shown below has the input waveforms 'A' and 'B' as shown. Pick out the correct output waveform. 

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The Boolean expression for NOR gate is:

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Explain why NAND gate is known as universal gate.

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Which logic gates is represented by the following combination of logic gates?

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When all the inputs of a NAND gate are connected together, the resulting circuit is:

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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 

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Medium
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Name the gate, which represents the Boolean expression Y=A⋅B

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