OpenStax University Physics/E&M/Inductance

From Wikiversity
Jump to navigation Jump to search

(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

Subpages

Chapter 14[edit]

Inductance[edit]

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, .

Toroid by Zureks labeled.svg

▭ 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]

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