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    How was it? i did not find it entirely difficult, just too little time to carry out all the calculations? What did you guys get for the energy dissipated question?
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    chargexpotential difference
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    what about the motor question about the varying current?
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    (Original post by pencil-case)
    what about the motor question about the varying current?
    didn't get time to do it took a wild guess.
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    (Original post by pencil-case)
    chargexpotential difference
    same, though apparently the energy dissipated is equal to the power which is potential difference x current. was a tricky question.
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    (Original post by Paranoid_Glitch)
    same, though apparently the energy dissipated is equal to the power which is potential difference x current. was a tricky question.
    power is rate of energy dissipation. was there any time given in the question? if its in a second its the same anyway

    P = IV P = W/t W = QV Q = It so W = IVt
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    http://www.pa.msu.edu/courses/1997sp...ors/power.html
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    (Original post by pencil-case)
    power is rate of energy dissipation. was there any time given in the question? if its in a second its the same anyway

    P = IV P = W/t W = QV Q = It so W = IVt
    oh okay, thanks
 
 
 
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