Calculating Transformer Parameters

  • Thread starter Thread starter superaznnerd
  • Start date Start date
  • Tags Tags
    Hard Transformer
Click For Summary
SUMMARY

The discussion focuses on calculating transformer parameters, specifically the relationship between primary and secondary currents using the equation N2/N1 = I1/I2. A participant incorrectly calculated the secondary current as 12A instead of the correct value of 24A. The conversation emphasizes the importance of understanding ideal transformer conditions, where input power equals output power, and seeks clarification on calculating secondary voltage and current through a resistor connected to the transformer's secondary terminals.

PREREQUISITES
  • Understanding of transformer equations and principles
  • Knowledge of electrical current and voltage relationships
  • Familiarity with ideal transformer assumptions
  • Basic concepts of power calculation in electrical circuits
NEXT STEPS
  • Study the derivation of transformer equations, particularly N2/N1 = I1/I2
  • Learn how to calculate secondary voltage in transformers
  • Explore power calculations in resistive loads connected to transformers
  • Review ideal transformer conditions and their implications in circuit analysis
USEFUL FOR

Electrical engineering students, educators teaching transformer theory, and professionals involved in circuit design and analysis.

superaznnerd
Messages
59
Reaction score
0

Homework Statement


see attachment





The Attempt at a Solution


for part a): I tried to use the equation N2/N1= I1/I2
I got 12A, instead of the answer (24A)

can someone please show me how to do this? I missed class one day, and now I'm lost
 

Attachments

  • transformer.jpg
    transformer.jpg
    26.3 KB · Views: 504
Physics news on Phys.org
help..anyone??
 
How much is the secondary voltage?

A resistor is connected across the secondary terminals. How much current flows through the resistor?

This current is the secondary current of the transformer. How much is the primary current?

If it is not stated otherwise, you can take the transformer ideal. It means that the power input is equal to the output power.

You know both the voltage and current across the resistor, connected to the output of the transformer. How much is the power on the resistor?

ehild
 

Similar threads

The Maximum current in a transformer
  • · Replies 2 ·
Replies
2
Views
2K
Current and Impedance in a Transformer
  • · Replies 4 ·
Replies
4
Views
4K
Current and Voltage in a transformer
  • · Replies 9 ·
Replies
9
Views
3K
Writing Kirchhoff Rules for a Multi-Loop Circuit
  • · Replies 5 ·
Replies
5
Views
4K
An ideal (lossless) transformer has 4 times as many turns
  • · Replies 1 ·
Replies
1
Views
3K
Did I count this current in a circuit correctly?
  • · Replies 6 ·
Replies
6
Views
2K
Understanding PhET simulation (Faraday's law)
  • · Replies 7 ·
Replies
7
Views
4K
Physics - transformer / resistance question
  • · Replies 4 ·
Replies
4
Views
5K
Find the transient current in this circuit
  • · Replies 31 ·
2
Replies
31
Views
3K
Calculating resistances via a potentiometer
  • · Replies 4 ·
Replies
4
Views
2K