can we increase the resistance by changing the resistivity
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Yes we surely can increase the resistance by increasing resistivity . Resistivity means extent to oppose the flow in a lay men note . So more it will resist , the more will be the resistance. Also in accordance to the formula of resistance
R= ρl/A
where R= resistance
l= length of wire
A = area of cross section of wire
ρ = resistivity of material
R ∝ ρ
i.e R is directly proportional to resistivity and when resistivity increases , resistance also increases and vice-versa.
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