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In an RL circuit, what does the time constant represent?

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Question: In an RL circuit, what does the time constant represent?

Options:

  1. The time to charge the inductor
  2. The time to discharge the inductor
  3. The time to reach 63.2% of final value
  4. The time to reach 100% of final value

Correct Answer: The time to reach 63.2% of final value

Solution: 

In an RL circuit, the time constant (Ï„) represents the time it takes for the current to reach approximately 63.2% of its final value.

In an RL circuit, what does the time constant represent?

Practice Questions

Q1
In an RL circuit, what does the time constant represent?
  1. The time to charge the inductor
  2. The time to discharge the inductor
  3. The time to reach 63.2% of final value
  4. The time to reach 100% of final value

Questions & Step-by-Step Solutions

In an RL circuit, what does the time constant represent?
  • Time Constant in RL Circuits – The time constant (Ï„) in an RL circuit indicates the time required for the current to reach about 63.2% of its maximum steady-state value after a voltage is applied.
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