What will be the current in the resistence after 5 minutes?

  • Context: High School 
  • Thread starter Thread starter athenaroa
  • Start date Start date
  • Tags Tags
    Value
Click For Summary
SUMMARY

The discussion centers on a scenario where a 10V potential difference is applied across a resistance, resulting in a current of 0.2 amps. The resistance value is confirmed to be 50 ohms. After maintaining this voltage for 5 minutes, the current in the resistance remains constant at 0.2 amps, as temperature is not a factor affecting the current in this context. This establishes that under steady conditions, the current does not change over time.

PREREQUISITES
  • Understanding of Ohm's Law
  • Basic knowledge of electrical circuits
  • Familiarity with the concept of resistance
  • Knowledge of current measurement in amperes
NEXT STEPS
  • Study Ohm's Law and its applications in electrical circuits
  • Explore the effects of temperature on resistance in conductors
  • Learn about real vs. ideal resistors in circuit analysis
  • Investigate the implications of constant voltage on current flow over time
USEFUL FOR

Electrical engineering students, hobbyists working with circuits, and professionals involved in circuit design and analysis will benefit from this discussion.

athenaroa
Messages
11
Reaction score
0
At exactly 1:00 pm on a certain day a 10 v potential difference is suddenly applied across a 'real' resistance and generates a current of 0.2 amps in the resistance. The value of the resistance at this moment is about 50 ohms. Let's say the 10 v are held constant and current is allowed to travel through the resistance for 5 minutes. At the end of the 5 minutes, the current in the 'real' resistance is expected to be what? this is not a trick question, temp is not a factor.
 
Last edited:
Physics news on Phys.org
0.2 amps
 
Is temp constant?

What are you getting at? Is this a trick question or a genuine enquiry?
 

Similar threads

High School Melting a nail with high currents
  • · Replies 3 ·
Replies
3
Views
2K
High School Troubleshooting Battery Internal Resistance Measurements
  • · Replies 105 ·
4
Replies
105
Views
14K
High School How a Secondary Resistor affects the Transformer Primary Side?
  • · Replies 6 ·
Replies
6
Views
19K
Undergrad What is Impedance? A 5 Minute Introduction
  • · Replies 0 ·
Replies
0
Views
3K
Graduate What Happens to Inductor Current When the Switch is Opened?
  • · Replies 24 ·
Replies
24
Views
9K
Undergrad Amp vs. USB: Understanding the Truth About Voltage and Resistance
  • · Replies 16 ·
Replies
16
Views
3K
Graduate What is Kirchhoff's Current Law
  • · Replies 1 ·
Replies
1
Views
6K
What is voltage when running current through copper plats?
  • · Replies 1 ·
Replies
1
Views
2K
Potential Gradient of potentiometer wire
  • · Replies 2 ·
Replies
2
Views
4K
Engineering How Do You Calculate Current and Power Factor in a Synchronous Induction Motor?
  • · Replies 4 ·
Replies
4
Views
4K