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Alternating Current

  1. The time constant of C–R circuit is​
    1. 1/CR ​
    2. C/R ​
    3. CR ​
    4. R/C
Correct Option: C

​The time constant for resonance circuit, ​= CR ​Growth of charge in a circuit containing capacitance and resistance is given by the formula,
q = q0(1 - e-t/CR)
​CR is known as time constant in this formula.



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