A doubt on self inductance and mutual inductance

Click For Summary
SUMMARY

This discussion clarifies the concepts of self-inductance and mutual inductance in electrical coils. It establishes that a change in magnetic flux in a primary coil induces an electromotive force (emf) in both the primary and secondary coils. The self-inductance of the primary coil accounts for the induced voltage due to its own flux, while mutual inductance describes the induced voltage in the secondary coil due to the primary coil's changing flux. Both phenomena occur simultaneously when the coils are in close proximity.

PREREQUISITES
  • Understanding of electromagnetic induction principles
  • Familiarity with self-inductance and mutual inductance concepts
  • Knowledge of coil configurations and proximity effects
  • Basic grasp of electromotive force (emf) generation
NEXT STEPS
  • Study the mathematical expressions for self-inductance and mutual inductance
  • Explore practical applications of mutual induction in transformers
  • Investigate the effects of coil proximity on inductive coupling
  • Learn about the role of inductance in AC circuit design
USEFUL FOR

Electrical engineering students, educators, and professionals interested in electromagnetic theory and applications in circuit design.

ayush123
Messages
2
Reaction score
0
i am having a doubt that when we find a expression for mutual inductance we say that flux change in primary coil induces emf in secondary coil. but why change in flux doesn't induce any current in primary coil also.
 
Physics news on Phys.org
ayush123 said:
i am having a doubt that when we find a expression for mutual inductance we say that flux change in primary coil induces emf in secondary coil. but why change in flux doesn't induce any current in primary coil also.

Who said it doesn't? It does. The voltage induced in the coil due to it's own flux is accounted for by it's self indictance while the voltage induced in another coil due to flux in the first is due to the mutual inductance.
 
u mean that when both the primary and secondary coils are at close proximity then along with mutual induction self induction also occurs. am i right.
 
Self-induction always occurs. Mutual induction occurs when components are brought in close enough proximity to allow coupling.
 

Similar threads

  • · Replies 16 ·
Replies
16
Views
4K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 21 ·
Replies
21
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 16 ·
Replies
16
Views
1K
  • · Replies 60 ·
3
Replies
60
Views
7K
  • · Replies 11 ·
Replies
11
Views
3K