A positive edge-triggered T Flip-Flop has T = 1. If the current output Q is 0, what will be the output Q after 3 clock pulses?

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RRB JE ECE 22 Apr 2025 Shift 2 CBT 2 Official Paper
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  2. Unchanged
  3. 1
  4. Toggles

Answer (Detailed Solution Below)

Option 3 : 1
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The correct answer is option 3) 1

Concept:

Let's analyze the given problem statement and options in detail:

Given:

  • T = 1
  • Current output Q = 0

Let's analyze the state of Q after each clock pulse:

  1. Initial state Q = 0
  2. After 1st clock pulse: Q will toggle from 0 to 1
  3. After 2nd clock pulse: Q will toggle from 1 to 0
  4. After 3rd clock pulse: Q will toggle from 0 to 1

Therefore, the output Q after 3 clock pulses will be 1.

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