Thu July 19, 2012 By:

Q1:) Draw the shape of the curve obtained when a graph is plotted between I and V.

Expert Reply
Thu July 19, 2012
1) It is a straight line.
2) Resistivity of a conductor is a property of a material and temperature. It does not depend on geometry.
    Resistance is directly proportional to length and inversely proportional to cross-sectional area.
    a) The resistance is doubled.
    b) it is doubled
    c)  it is halved
    d)  there will be no change
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