19.3 Magnetic Fields in Current Carrying Loops and Ideal Solenoids
Magnetic Fields in Current-Carrying Loops and Ideal Solenoids
| MAGNETIC FIELDS AND FORCES & CONDUCTORS | |
|---|---|
| Magnetic Field at the Center of a Circular Current-Carrying Loop | |
| B = N µ0 I / 2R µ0 = 4π×10-7 T • m / A I = current N = number of turns R = radius of the loop |  |
| Magnetic Field Inside an Ideal Solenoid | |
| B = µ0 N I / L = µ0 n I n = N / L µ0 = 4π×10-7 T • m / A N = number of turns I = current L = Length |  |