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Download Lab C C242: S Simple C Circuits , Week 2
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Lab C242: C S Simple C Circuits , Week 2 For thiss section, yo ou need onlyy fill out thee accompannying data sheet. No othher write-upp is needed.. y will find d 3 carbon rresistors, mo ounted in doouble-banan na mounts. At yourr position, you Measurre and recorrd on the datta sheet, thee resistancess of the 3 reesistors withh your DMM M. Build thhe followin ng circuit, using u the 3 resistors and the DC power suppply (which h acts like a battery)). Set the vo oltage Vo to o about 10 V and measuure Vo withh the DMM. You can put p the threee resistors in any ord der in the cirrcuit, just be sure to reccord which is which. ges across each of the Measurre the voltag three reesistors. (V1 = voltage aacross R1, ettc) Computte the currents throughh each of thee three reesistors, and d record answers in mA A (I1 = currrent thru R1, etc.) K s voltage law w (the loop law) and Kirchhoff’s K c current law (the junctioon law). Is Verify Kirchhoff’s there anny discrepan ncy? If so, explain. e urrent through the batteery. Does thhis agree witth your earllier measureements? Computte Ibat the cu NAME____________________________ DATE_______________________ PARTNER’S NAME(S)_______________________________________ Record all results with a reasonable number of sig.figs! Vo = _______________________ R1 = ________________ R2 = ________________ R3 = ________________ V1 = ________________ V2 = ________________ V3 = ________________ I1 = ________________ I2 = ________________ I3 = ________________ How is I1 computed? Check that Kirchhoff’s voltage law (loop law) is obeyed: Check that Kirchhoff’s current law (junction law) is obeyed: Compute Rtotal (show how you computed it): Rtotal (computed) =_____________________ Rtotal (measured) =_____________________ Compute Ibat (show how you computed it): Ibat = __________________ What do you expect to happen to I1 when the resistor R3 is removed from the circuit? Explain in writing, and then check your prediction experimentally with your circuit. Experimental Result:
