How Do You Calculate Magnetic Field Near a Current-Carrying Wire and Solenoid?

  • Thread starter Thread starter djr1978
  • Start date Start date
  • Tags Tags
    Magnetism
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
1 reply · 2K views
djr1978
Messages
1
Reaction score
0
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.

PLEASE HELP!
 
Physics news on Phys.org
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.