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  1. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    how are u guys preparing for P2??? i am really tensed:eek::confused:!! My average score is 67-68, what can i do to make sure i dont lose that 7-8 marks???please help!
  2. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    NO NO... we are waiting for your responses, it doesnt matter if you got it wrong once, i have spent pages on this thread arguing about a topic and finally found out i was wrong!
  3. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    i am sure it is C! spaces between feathers do act as insulator, but for heat, and that is not related to electricity!
  4. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    kia keh rahy ho? step up is used when transmitting the power from power stations to our homes! step down is used to convert back the high voltage to low voltage so that it can be used in our homes!
  5. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    when an AC current flows through the coil around a ring of soft magnetic material such as iron, it produces a magnetic flux because of the constantly changing direction of current. this magnetic flux is carried around in the iron ring to the output wires, where the reverse occurs and a changing...
  6. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    the concept is ok, though the language needs a bit revising, it gets a bit muddled up in the middle, No offense!
  7. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    ok got it now!
  8. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    my guess would be C = -no potential difference b/w feet, which is the same as your guess because they arent connected to earth, so no current flows and no p.d!
  9. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    which one? didnt see sorry :oops:, must have passed! can u please send again?
  10. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    1. you have to draw thermocouple like this : (very badly drawn) . 2. . 3.it is a very long diagram, you have to draw a labelled piece of wire, a cell, and ammeter in series. and a voltmeter connected in parallel to wire. then you have to draw a thermocouple with one end touching wire and other...
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