physics

posted by .

A wire is made of a material with a resistivity of 4.85109 × 10−8 Ω · m . It has length 5.57436 m and diameter 0.36396 mm .
What is the resistance of the wire?
Answer in units of Ω

  • physics -

    R=ρL/A
    A=πd²/4

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Two wires with the same resistance have the same diameter but different lengths. If wire 1 has length L1 and wire 2 has length L2, how do L1 and L2 compare if wire 1 is made from copper and wire 2 is made from aluminum?
  2. physics

    The magnetic field in a loudspeaker is 0.2 T. The wire consists of 308 turns wound on a 4.12 cm diameter cylindrical form. The resistance of the wire is 8.2 Ω. Find the force exerted on the wire when 15.8 V is placed across …
  3. Physics!! Help!!!!!

    A wire of length L and cross-sectional area A has resistance R. What will be the resistance R_stretched of the wire if it is stretched to twice its original length?
  4. Physics

    Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.436 mm. The resistivity of nichrome is 1.5×10−6 Ω·m. Answer in units of Ω/m If a potential difference of 20 V is maintained across …
  5. physics

    A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11~ 10-8 ƒ¶m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has …
  6. physics, university

    A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11 x 10-8 ohms/m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has …
  7. Physics II

    A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 10-8 · m, and the density is 7.67 g/cm3. The material is to be shaped into a solid cylindrical wire that has a …
  8. physics

    As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the nichrome and make a wire with a resistance of 0.840 Ω. The resistivity of nichrome is …
  9. physics

    What is the resistance of a 7.4-m length of copper wire 1.2mm in diameter?
  10. Physics

    A wire is made of a material with a resistivity of 2.08184 × 10−8 Ω · m . It has length 4.42917 m and diameter 0.6763 mm . What is the resistance of the wire?

More Similar Questions