Lecture 31
InductanceConsider the application of FaradayS Law to a single loop.
Solenoids are referred to as inductors. It in series with a battery and a resistor forms a simple RL circuit.
Analogous to RC case:
Notice the derivative of the loop equation gives:
Rearrangement gives:
For decay case:
Here, the battery is removed.
Loop Equation:
Energy Stored in C and L
Express Energy Stored in terms of B
Energy Density
magnetic
electric
A B
C D
Left Diagram:
Right Diagram:Loop A3B4A:
Loop C(wire)D4C: