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Zman's Discussions (21)

Discussions Started (21) Replies Latest Activity

Help with gain calculation

Hi all! I know voltage gain is given as Vout/Vin...I'm a little confused.  I want to know if the values of voltages used for this calculati…

Started by Zman in Electronics Students

1 Jun 3, 2012

Multimeter can't do AC Current measurement?

A real simple question... I'm trying to measure an AC current in the region of 8A. My multimeter is a Major-Tech MT845 - quite old, digital…

Started by Zman in Electronics Students

1 May 30, 2012

Inductor and Capacitor Status in Circuits

HelloIf we have a circuit that uses an inductor and the voltage changed, the inductor should decline these changes with an increase or decr…

Started by Zman in Electronics Students

1 May 29, 2012

RC Time Constant Question

Hello-I have an RC low-pass single order filter.R = 40kC = 10uFThe 3db point I'm filtering at is 1/2*pi*R*C = 0.4 HzThe RC time constant is…

Started by Zman in Electronics Students

1 May 23, 2012

How Does USB Work Internally?

I read a lot about USB functions but I cannot find a proper explanation about how Data is exchanged.  For example if I connect a device lik…

Started by Zman in Information Technology Students

0 May 14, 2012

SCR forward breakover

HiThis may be an elementary question, but I haven't found a convincing answer in any reference book.  Why does the voltage across an SCR su…

Started by Zman in Electronics Students

2 May 23, 2012

IC Input and Output Currents

Hello guys, I am new to electronics. While I was experimenting with 74LS series ICs, I saw the peculiarity, that the I/O current does not m…

Started by Zman in Electronics Students

1 May 21, 2012

Op Amp Question

Please, can somebody here help me with solutions to this question?

Started by Zman in Electronics Students

1 May 21, 2012

Power Amplifier Classes

anyone can give me a circuit design about each class of power amplifier? ( especially for class A, B, AB and C )Regards

Started by Zman in Electronics Students

1 May 21, 2012