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  1. Z

    STATISTICS 1 ... doubts here !!!

    to find Σxy, times the x values obtained by the y values for each set and add them all together to find Σxy
  2. Z

    As Physics Unit3 Discussion

    Oh haha i forgot about battery, ya you connect a voltmeter parallel to the cell and an ammeter in series to the cell. As you change the settings on the rheostat, the readings tell you how much current and voltage is being supplied to the cell being supplied to the battery. Damn i got 1st...
  3. Z

    As Physics Unit3 Discussion

    I drew a circuit diagram including : Voltmeter, Ammeter , Variable resistor and a power supply. i mentioned that i started the rheostat at max setting to reduce heating effects and gradually lowered it, recording corresponding values of P.D and Current
  4. Z

    As Physics Unit3 Discussion

    for the graph for the last question, wasn't the scale messed up? i ended up using graph paper instead hahaha and i got a value of the strain energy as like 0.076J =p is it still valid? my graph was a straightline but i made it curve right at the end :p not sure if its right but yeah and for q1...
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