*This preview shows
pages
1–5. Sign up
to
view the full content.*

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
**Unformatted text preview: **apter 29: Magnetic Fields due to Curren Solenoids Getting vector B of a Solenoid Toroids Torque in an Electric Field Torque in an Magnetic Field A Current Carrying Coil Checkpoint #4 Problems Faraday’s Law Chapter 29: Magnetic Fields due to Currents – p. Solenoids A solenoid is a conducting wire wrapped into a cylindrical shape. It acts like a capacitor for magnetic fields. Inside: vector B is constant Outside: vector B is virtually zero Chapter 29: Magnetic Fields due to Currents – p. Getting vector B of a Solenoid To find vector B , we use Ampere’s Law and treat the solenoid like two lines of current-carrying wires. In the middle, vector B = μ in where i is the current going through the solenoid, and n is the number of turns in the solenoid. Chapter 29: Magnetic Fields due to Currents – p. Toroids A toroid is a solenoid that has been curved until its ends meet (a current doughnut). vector B is trapped within the toroid....

View
Full
Document