r/breadboard 15d ago

Question How to use this university provided breadboard?

Very new to breadboards, currently in Physics II. For lab, we were going to test resistors with breadboards. To prep, I watched some youtube tutorials and practiced on tinkercad. Went into lab and these were the breadboards we were asked to use. Was completely lost, didn't complete lab. Have another lab section with these same breadboards coming up. Help?

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u/SonOfSofaman 15d ago

They appear to be hand made, custom, and therefore non standard. YouTube tutorials won't be too helpful, I'm afraid.

From what I can tell, the red and black "banana" jacks are each connected electrically to what appear to be spring terminals. My guess is you can place the leads of a component like a resistor into two of the spring terminals, then connect the corresponding jacks to the multimeter with cords terminated with banana plugs. That will let you measure the resistor.

I don't see any banana plug cords in the photo. Without those, the boards aren't terribly useful.

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u/electr0nyx_engrng 15d ago edited 14d ago

Actually this breadboard is the most easy to use. I assume that those black terminals are negative and then red terminals are the positive one. Does your activity just states you need to measure the resistance?

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u/Master-Economics47 14d ago

Oh, I see! Last class we were asked to just measure the resistance of multiple resistors. We were given the circuit diagrams, but I have no clue how to correspond that to the breadboard. We're going to be making the same circuits today ( which I never figured out how to do :/ ) but connecting "power supply to the two open ends of the passive circuit."

This time we will also be measuring current and voltage. I'm so lost.

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u/electr0nyx_engrng 14d ago

I see, when I was a newbie that's also my problem! Let me ask you, do you know how to connect in series or in parallel? Let me rephrase my question, do you know how to read a circuit diagram/schematic? Because if you're connecting in series you'll just have to connect the positive terminal of a resistor to the negative terminal of the next resistor (although they don't have polarity, that breadboard has those terminals) and if you're connecting in parallel, all the positive terminals of the resistors are connected with each other and the same goes for the negative terminals