Recent content by maherelharake

  1. M

    Explaining How 555 Circuit works

    Well based off my previous statements, would no input signal lead to a high output? I don't know what would happen if an input edge occurs. Wouldn't repeated input pulses just give repeated outputs? I also don't know what the transistor would do I'm not that great at this stuff :confused:
  2. M

    Explaining How 555 Circuit works

    Haha yeah sorry it seems as if I didn't even think about it. Well I know that 555's have properties such as: low trigger input leads to high output high trigger input leads to low output it outputs a square wave if the trigger isn't a max/min then there is no output Not sure if these...
  3. M

    Explaining How 555 Circuit works

    Homework Statement The problem is the attachment. Homework Equations The Attempt at a Solution I am not sure what the appropriate answer is. Any suggestions?
  4. M

    What Is the Pulse Delay Time for a 20-Foot Coax Cable?

    Well speed=distance/time. I could use the speed and distance to find the time. Is that all "pulse delay time" refers to?
  5. M

    What Is the Pulse Delay Time for a 20-Foot Coax Cable?

    Homework Statement Electrical pulses travel at about half of light speed through coax cables. Determine the pulse delay time for a cable with a length of 20 feet. Homework Equations The Attempt at a Solution I don't think this question is very hard, but I can't find any...
  6. M

    Analyzing Gain Curve for 741 Op-Amp

    Oh ok. Gotcha. Thanks for all your help.
  7. M

    Analyzing Gain Curve for 741 Op-Amp

    It says the closed-loop bandwidth is equal to gain bandwidth product divided by noise gain. Would the gain-bandwidth product just be 100? I'm not sure how to get the noise gain in this case though.
  8. M

    Analyzing Gain Curve for 741 Op-Amp

    Ahh right. So about 7.5 db/octave. My initial rough estimate was fairly close. Great. Any hints for part b? Thanks
  9. M

    Analyzing Gain Curve for 741 Op-Amp

    Ohh. So since the dB/decade is about 25, I would have to multiply that by 3.322 to get the ultimate gain fall-off in terms ofdB/octave?
  10. M

    Analyzing Gain Curve for 741 Op-Amp

    I can definitely try to post some solutions when I get it all sorted out. As far as how you got that number 3.322, I'm still a bit unsure about how it was attained. I agree with the 100 dB over 4 decades, so why wouldn't it be 25 instead of 3.322? Thanks.
  11. M

    Analyzing Gain Curve for 741 Op-Amp

    Are you suggesting I print it out and redraw it on a new sheet? Unfortunately, I don't think my drawing ability will be as good as the given, computer-generated plot. Is there no way to use the one I uploaded? Thanks.
  12. M

    Analyzing Gain Curve for 741 Op-Amp

    Homework Statement I have attached the graph, and questions. Homework Equations The Attempt at a Solution For part a, do I just have to estimate how many db's are lost during one octave? One octave is halving of frequency, so could part a be approximated to be about 8...
  13. M

    Can Anyone Help Review My Half-Wave Rectifier Calculations?

    Oh I'm sorry. I guess it didn't upload properly for somer reason. Here it is.