A copper wire has a length of 1.50 m and a cross sectional area of 0.240 mm2. If the resistivity of copper is 1.70 ✕ 10−8 Ω · m and a poten?

1 Answer

Relevance
  • Anonymous
    5 months ago

    I just want to give you a hint

    A copper wire has a length L of 1.50 m and a cross sectional area A of 0.240 mm2. If the resistivity of copper ρ

    cu is 1.70 ✕ 10^−8 Ω · m and a potential V of 10.0 mV volt is applied , what current I will flow through it?

    copper resistivity ρcu = 1.70*10^−8 ohm*m = 17.0*10^-3 ohm*mm^2/m

    wire resistance R = ρcu*L/A = 17*10^-3*1.50*10^3/240 = 0.106 ohm

    I = V/R = 10/0.106 = 94.1 mA

    • Commenter avatarLog in to reply to the answers
Still have questions? Get answers by asking now.