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Q&A

Posts tagged frequency

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Q&A How to design a low-pass filter when certain conditions must be met

I am designing a low-pass filter with cut-off frequency = 100Hz and after the cutoff frequency from -3dB to -10dB the average decrease in db/Hz = -0.1 db/Hz.I know how to design a low-pass filter ...

2 answers  ·  posted 5mo ago by MissMulan‭  ·  edited 5mo ago by MissMulan‭

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Q&A Inductance vs frequency

Suppose we have a sine signal applied to a inductive load. Is the inductance of the load changed if the frequency of the signal is changed?

3 answers  ·  posted 1y ago by MissMulan‭  ·  last activity 10mo ago by coquelicot‭

Question frequency inductor
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Q&A Diodes used in mixers

Suppose we have this circuit which is supposed to be an unbalanced frequency mixer. But how does the diode generate a signal with new frequencies at the output?

2 answers  ·  posted 1y ago by MissMulan‭  ·  edited 1y ago by Peter Mortensen‭

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Q&A Capacitance gain using conductive core for inductors [closed]

I have learnt that if we have 2 parallel conductive plates and we seperate them the capacitance is increased if we put a good conductor between the plates. Now the resonant frequency of a inductor...

0 answers  ·  posted 1y ago by MissMulan‭  ·  edited 1y ago by MissMulan‭

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Q&A Why does AC frequency affect my microwave's RPM?

I used to live in the United States, and my microwave ovens' turntables turned at six rotations per minute (RPM). I now live in Israel, and my microwave oven's turntable rotates at five RPM. Annoye...

1 answer  ·  posted 2y ago by msh210‭  ·  last activity 2y ago by Olin Lathrop‭

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Q&A Why RC toys still operate in 27Mhz band?

Recently I had opened an remote control (RC) toy to see its circuit and found that it operates on 27 Mhz. Not just that toy even many toys operate in that 27 and 49 Mhz band. These days we find eve...

2 answers  ·  posted 2y ago by aditya98‭  ·  last activity 2y ago by Olin Lathrop‭

Question frequency