Why I-V curve but not V-I curve

  • Thread starter Thread starter KathC
  • Start date Start date
  • Tags Tags
    Curve I-v
Click For Summary
SUMMARY

The I-V curve is utilized to characterize electrical devices because it effectively illustrates how devices respond to voltage changes, resulting in a corresponding current profile. In contrast, the V-I curve, while it directly shows resistance through its gradient, is less practical since controlling current is more challenging than controlling voltage. This distinction is crucial for understanding device behavior in electrical engineering.

PREREQUISITES
  • Understanding of electrical circuits and components
  • Familiarity with voltage and current concepts
  • Knowledge of Ohm's Law and resistance
  • Basic principles of electrical device operation
NEXT STEPS
  • Research the practical applications of I-V curves in semiconductor devices
  • Study the differences between voltage-controlled and current-controlled devices
  • Learn about the significance of resistance in electrical engineering
  • Explore advanced topics in electrical device characterization techniques
USEFUL FOR

Electrical engineers, students in electronics, and anyone interested in understanding the behavior of electrical devices through I-V characteristics.

KathC
Messages
2
Reaction score
0
Why we use I-V curve to show the characteristic of an electrical device but not V-I curve? I think the V-I one is clearer as the gradient would be resistance directly...

My teacher said there is a reason to use I-V, but she couldn't remenber.

Anyone knows?...Thx a lot...
 
Physics news on Phys.org
I think it is because it is easy to control the voltage but not easy to control the current. The device responds to the voltage with a current profile. It doesn't respond to current by inducing a voltage.
 
vertigo said:
I think it is because it is easy to control the voltage but not easy to control the current. The device responds to the voltage with a current profile. It doesn't respond to current by inducing a voltage.

Thanks! I think you're right...:)
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 9 ·
Replies
9
Views
3K
Replies
6
Views
3K
Replies
2
Views
2K
Replies
16
Views
1K
Replies
1
Views
2K
Replies
4
Views
2K
  • · Replies 12 ·
Replies
12
Views
7K
Replies
10
Views
2K
  • · Replies 19 ·
Replies
19
Views
3K