Selamat datang di ForSa! Forum diskusi seputar sains, teknologi dan pendidikan Indonesia.

Welcome to Forum Sains Indonesia. Please login or sign up.

Maret 29, 2024, 08:44:19 PM

Login with username, password and session length

Topik Baru

Artikel Sains

Anggota
Stats
  • Total Tulisan: 139,653
  • Total Topik: 10,405
  • Online today: 231
  • Online ever: 1,582
  • (Desember 22, 2022, 06:39:12 AM)
Pengguna Online
Users: 0
Guests: 209
Total: 209

Aku Cinta ForSa

ForSa on FB ForSa on Twitter

Perbedaan Impedansi dengan resistivitas??

Dimulai oleh muhmus88, Januari 12, 2010, 12:34:44 PM

« sebelumnya - berikutnya »

0 Anggota dan 1 Pengunjung sedang melihat topik ini.

muhmus88

aduh temen2 ada yang bisa bantu gag??

apa sih perbedaan resistivitas dengan impedansi??bingung nieh???

makasih sebelumnya temen/...

oiya di jelasin juga ya..

kalo ada link kasih juga..

tengkyu...
Surga Itu bukan tentang tempat yang indah, Melaikan Tentang Rasa yang sempurna.

ksatriabajuhitam

[pranala luar disembunyikan, sila masuk atau daftar.]
[pranala luar disembunyikan, sila masuk atau daftar.]

singkatnya, resistansi untuk arus DC sedangkan impedansi untuk arus AC

Kutip
...
Impedance is a more general term for resistance that also includes reactance.

In other words, resistance is the opposition to a steady electric current. Pure resistance does not change with frequency, and typically the only time only resistance is considered is with DC (direct current -- not changing) electricity.

Reactance, however, is a measure of the type of opposition to AC electricity due to capacitance or inductance. This opposition varies with frequency. For example, a capacitor only allows DC current to flow for a short while until it is charged; at that point, current will stop flowing and it will look like an open. However, if a very high frequency is put across that capacitor (a signal that has a voltage which is changing very quickly back and forth), the capacitor will look like a short circuit. The capacitor has a reactance which is inversely proportional to frequency. An inductor has a reactance which is directly proportional to frequency -- DC flows through easily while high-frequency AC is stopped.
...
not all the problems could be solved by the sword, but sword holder take control of problems.
ForSa versi mobile: http://www.forumsains.com/forum?wap2