A TTL circuit acts as current sink in

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  1. low state and current source in high state.
  2. high state and current source in low state.
  3. low state and current source in low state.
  4. high state and current source in high state.

Answer (Detailed Solution Below)

Option 1 : low state and current source in high state.
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The correct answer is option 1):(low state and current source in high state.)

Concept:

  • A TTL circuit acts as a current sink in the Low state
  • The TTL input current is largest in low state.
  • It describes how regular current travels from the positive, also known as the sourcing end, to the ground, known as the sinking end.
  • Direct current often flows when two parts of a circuit source and sink current complete the circuit.
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