OpenStax University Physics/E&M/Inductance
(Vol. 2): 5:Electric Charges and Fields 6:Gauss's Law 7:Electric Potential 8:Capacitance 9:Current and Resistance 10:Direct-Current Circuits 11:Magnetic Forces and Fields 12:Sources of Magnetic Fields 13:Electromagnetic Induction 14:Inductance 15:Alternating-Current Circuits 16:Electromagnetic Waves
Chapter 14
[edit | edit source]Inductance
[edit | edit source]The SI unit for inductance is the Henry: 1H=1V·s/A ▭ Mutual inductance: where is the flux through 1 due to the current in 2 and is the emf in 1. Likewise, it can be shownSEE TALK that, .
▭ Self-inductance ▭ Stored energy
▭ is the current in an LR circuit where is the LR decay time.
▭ The capacitor's charge on an LC circuit
where is angular frequency
▭ LRC circuit where
For quiz at QB/d_cp2.14
[edit | edit source]Unit of inductance = Henry (H)=1V·s/A
Mutual inductance: where =flux through 1 due to current in 2. Reciprocity:
Self-inductance:
, , Stored energy=
in LR circuit where .
in LC circuit where