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Network Elements and the Concept of Circuit

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Network Theory

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


    1. 60
      		C
      5
    2. 15 C
    3. 25 C
    4. None of these
Correct Option: B

Time constant of the RC circuit can be calculated by replacing all the energy sources to their internal resistance and calculate the equivalent resistance as viewed from the terminal through which capacitor as connected i.e. A and B.
The equivalent circuit is given below:
R eq = 30 || (10 + 20)
or R eq = 15 Ω

Time constant (τ)=Req. C = 15 C


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