### Discussion :: RC Circuits - General Questions (Q.No.19)

Anand said: (Jun 18, 2015) | |

Total impedance= R-JXc. |

Anonymous said: (Nov 8, 2016) | |

Please Given the explanation. |

Dhaval said: (May 4, 2017) | |

Here, Z=R+Xc. Now resistance and frequency is halved so R become R/2 and Xc=1/2π(f/2)c => 2Xc=1/2πfc. Z'=R/2+ 2Xc so impedance neither double nor halved. So, It cannot determine without values. |

Manish said: (Oct 3, 2017) | |

There is no explanation about capacitance so without value of capacitance we can't say anything. |

Noor Ul Islam said: (Aug 30, 2018) | |

z =√((2R)^2+(2/wC)^2) because resistance is double and frequency is half. z = 2√((2R)^2+(2/wC)^2). So the impedence is double. |

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