Inductance 03 - Energy Stored in the B Field of an Inductor |

════════════════════ OPENING QUESTIONS: There is a recurring *style* of equation for various types of energy. Comb your thoughts and see if you can suggest what that might be.
Hint: 1/2kx
With that in mind, please suggest an equation for calculating the energy stored in the magnetic field of an inductor.
WORDS/FORMULAE FOR TODAY TERMS
CONSTANTS: UNITS: - henry = (volt)(sec)/amps
FORMULAE: - U
_{B}= 1/2Li^{2} - ε
_{L}= L(di/dt) - Kirchoff Amended: ε - iR - L(di/dt) = 0
- B = μ
_{o}nI- n = number of loops per unit length
- I = current
- ε
_{L}= -L(di/dt) AP = -L(dI/dt)- dI/dt = change in current
- L = propotionality constant depending on the "
*geometry of the loop and other physical characteristics*"
- L = Nφ
_{B}/i- N = number of loops (or coils if you prefer)
- i = current that may vary with time (hence the lower case)
WORK O' THE DAY: Please write the full form of Kirchoff's Law (include inductance) How many OTHER equations do we have for EMF? ════════════════════ Coursework: Problem 15 and 19 on page 990 |

STUDY GUIDE: |