NECO PHYSICS PRACTICAL 2024 ELECTRICITY MANIPULATION

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  • Опубліковано 27 жов 2024

КОМЕНТАРІ • 27

  • @okoliepromise807
    @okoliepromise807 4 місяці тому +3

    Thank you Sir, but i think the current for each length of wire has to be the same since the wire and the 2ohm resistor are arranged in series... From the theory resistors in series have the same current

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @okoliepromise807 no. It's not necessarily so. Different resistances can be connected in series or parallel

  • @Omez213
    @Omez213 4 місяці тому

    Brilliant work. One more scenario you did not consider is the voltmeter across both the standard resistor and the constantan wire while in series.

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      That's true. Because of the time and length of the video.
      All what you can do when the voltmeter is connected across the series connection is just to add the two resistances to gether and then apply V = IR.

  • @BlossomOladapo-yc7sx
    @BlossomOladapo-yc7sx 4 місяці тому

    Well Done sir🎉🎉🎉🎉 it's the second case that came out

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @@BlossomOladapo-yc7sx yeah.

    • @BlossomOladapo-yc7sx
      @BlossomOladapo-yc7sx 4 місяці тому

      @@yousciencelab5307 Sir just to confirm the graph we were asked to plot is it positively sloped or negatively sloped

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @@BlossomOladapo-yc7sx I didn't plot it. But I think it should be positive

    • @BlossomOladapo-yc7sx
      @BlossomOladapo-yc7sx 4 місяці тому

      @@yousciencelab5307 ok thanks a lot sir once again I appreciate 😊😊😊😊

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @@BlossomOladapo-yc7sx you're always welcome

  • @danielkaro4739
    @danielkaro4739 4 місяці тому

    Sir you are just so amazing Tnks for this

  • @AkogwuMoses-cc9qd
    @AkogwuMoses-cc9qd 4 місяці тому

    Hello sir..
    Please, I also want to know if the internal resistance in this case can be negligible or is it a must to calculate it while doing the manipulation?
    Thanks in anticipation 🙏🙏🙏

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @AkogwuMoses-cc9qd I think it's good to add it. Here is what you can do. Look for a question on electricity where the emf is 2 or 3 volts. Check the internal resistance given in the question. Use it as the internal resistance of the battery.

    • @AkogwuMoses-cc9qd
      @AkogwuMoses-cc9qd 4 місяці тому

      @@yousciencelab5307 okay.. thank you very much

  • @chineduigbokwe8580
    @chineduigbokwe8580 4 місяці тому

    The length of Constantine wire is in cm while resistivity per unit length is in metres . I believe they should be in the same si unit probably in cm as the wire length is in cm. Please cross-check your conversion

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому +1

      @@chineduigbokwe8580 I believe you saw in the video where I divided L by 100.

    • @UcheKonkwo-is1hz
      @UcheKonkwo-is1hz 4 місяці тому

      Sensitivity must be in ohms per metre.

    • @danielkaro4739
      @danielkaro4739 4 місяці тому

      @@yousciencelab5307 it was divided and clerity were made

  • @AkogwuMoses-cc9qd
    @AkogwuMoses-cc9qd 4 місяці тому

    Well done sir.. very helpful.
    But, i want to knw if the 3.014 ohms/m is generic for the SWG 26 wire... how did they come about the value?
    Is it fixed for this type of wire since we have others like swg 20, 38 etc ?

    • @yousciencelab5307
      @yousciencelab5307  3 місяці тому

      It is calculated using the diameter, leng and resistivity of the wire.

  • @SamuelStephen-gd3py
    @SamuelStephen-gd3py 4 місяці тому +1

    How can we get our V°

  • @okoroikenna9053
    @okoroikenna9053 4 місяці тому

    I didn't see where u connectedbor used jockey sir

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      I used a crocodile clip. It serves the same purpose as jockey

    • @okoroikenna9053
      @okoroikenna9053 4 місяці тому

      @@yousciencelab5307 in Ur own opinion, can we can alsi use a potentiometer to represent the constantan wire .since the potentiometer is a constantan wire as well

    • @yousciencelab5307
      @yousciencelab5307  4 місяці тому

      @okoroikenna9053 it will be OK. But remember that they asked for a specific tyle of constantan wire. Your potentiometer wire may not be exactly the same as the required wire.