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Homework Help: About electrical

  1. Oct 1, 2011 #1
    i have some questions.

    1. Given two pieces of copper wire which have same length but different diameters and based on equation R=ρ(L/A),determine the relative resistance of a piece of wire provided that its diameter is twice as long as that of the other one.

    2. Given a resistor with bands 1=blue,2=orange,3=green,4=silver;find the resistance value and tolerance.

    3. Comparing the measured 6.522kΩ with the calculated one , state the error percentage
    and verify whether the Ohm's Law is correct.
  2. jcsd
  3. Oct 1, 2011 #2
    Please make an attempt at solving the problems on your own, and don't just post a set of problems.
  4. Oct 2, 2011 #3
    I need help...please me!!
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