1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Help with Magnetism Problem

  1. Dec 3, 2009 #1
    A straight wire carrying a current of 48 A lies along the axis of a 4.9 cm diameter solenoid. The solenoid is 55 cm long and has 250 turns carrying a current of 5.0 A.

    1)What is the magnitude of the magnetic field 1.3 cm from the wire? (in mT)
    2)Estimate the magnitude of the magnetic field 3.4 cm from the wire. (in mT)

    I know that B of the wire is 0.196mT and the B of the solenoid is 1.570mT but I'm not sure where to go after this.

  2. jcsd
  3. Dec 3, 2009 #2


    User Avatar
    Homework Helper

    Inside the solenoid, the field due to the solenoid and wire are perpendicular to each other. So the magnetic field is resultant of these two fields.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook