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Network theory miscellaneous

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Network Theory

Network Elements and the Concept of Circuit
Network theory miscellaneous
  1. The time constant for the given circuit will be—


    1. 1/9 s
    2. 1/4 s
    3. 4s
    4. 9s
Correct Option: C

The given circuit:

The equivalent circuit for calculating time constant is shown below:

Now, time constant,

τ = Req Ceq = 6 ×
2
= 4sec
3

Hence alternative (C) is the correct choice.


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