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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

homework help

  1. E

    Making a logic circuit with only 8 NOR Gates (4*2 Inputs and 4*4 Inputs)

    Hello everyone, I have a problem and I thought I should post it here because I can't quite get the hang of it. I was tasked to make a circuit that is made of only NOR-gates. Seemed simple at first but then the restrictions came in. The circuit needs to be made out of 4 NOR gates with 2 inputs...
    • Eddi
    • Thread
    • circuit design circuit testing circuit-analysis help needed homework help logic circuit
    • Replies: 4
    • Forum: Homework Help
  2. J

    help to do an activity about " half wave rectifier" using the multisim

    the activity primary objtives are: 1. Make a half wave rectifier 2. Check the behavior of the diodes 3. assemble the circuit in the figure 4. Compare the waves over the diode and over the resistor 5. Add the capacitor and observe the waveform at the output of the circuit 6. Draw the waveforms as...
    • julio89
    • Thread
    • circuit eletrical homework help multisim
    • Replies: 3
    • Forum: Homework Help
  3. B

    Help with breadboard audio player project

    Hi all, I'm a math and physics major in my junior year. I am in a class called Scientific Instrumentation. The class requires that, by the end of the year, I must design and build a project on a breadboard. I decided that I wanted to build a breadboard that will play the melody of "Africa" by...
  4. BaconSlide

    Need Help with this problem..

  5. ElectronicTy

    LM 741 Questions

    Hi all i have a problem with a LM741 op-amp, when calculating the output voltage i should have when inputting 12vpp using the formula Vo = Vi(1+Rf/Ri) and the values being vi = 12 rf = 6k Ri = 1.5k i should be having an output of 60v, but when building and simulating my design i only have...
  6. C

    Little help understanding CMOS circuit design.

    Question: Design a 3-input NOR gate. If the PMOS devices are half as conductive as the NMOS devices determine the correct transistor sizes. I understand how to design the pull up pull down circuit, just unsure about calculating the correct transistor sizes. Thanks
  7. S

    Help with 2nd grade science project

    Good morning, My 7yr old son came up with a concept for a science fair for a Wipe Reminder to remind kids to wipe when they get off the toilet. I've done some research and came up with an idea for a push or pressure switch as well as a digital recording module. My question is do I need some...

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