Question
What is the difference between a step-up transformer and a step-down transformer?
A step-up transformer increases voltage and current. A step-down transformer does the opposite.
A step-up transformer increases current and decreases voltage. A step-down transformer does the opposite.
A step-up transformer increases voltage and decreases current. A step-down transformer does the opposite.
A step-up transformer increases voltage and current. A step-down transformer does the opposite.
A step-up transformer increases current and decreases voltage. A step-down transformer does the opposite.
A step-up transformer increases voltage and decreases current. A step-down transformer does the opposite.
Answers
GPT-4o mini
The correct statement is:
**A step-up transformer increases voltage and decreases current. A step-down transformer does the opposite.**
Here's a bit more detail on this:
- **Step-up Transformer**: This type of transformer increases the voltage from the primary winding to the secondary winding. As the voltage increases, the current decreases (assuming power remains constant, as per the principle of conservation of energy).
- **Step-down Transformer**: This type of transformer decreases the voltage from the primary winding to the secondary winding. In this case, as the voltage decreases, the current increases.
The relationship can be summarized mathematically by the formula \( V_p / V_s = N_p / N_s \), where \( V_p \) is the primary voltage, \( V_s \) is the secondary voltage, \( N_p \) is the number of turns in the primary winding, and \( N_s \) is the number of turns in the secondary winding.
**A step-up transformer increases voltage and decreases current. A step-down transformer does the opposite.**
Here's a bit more detail on this:
- **Step-up Transformer**: This type of transformer increases the voltage from the primary winding to the secondary winding. As the voltage increases, the current decreases (assuming power remains constant, as per the principle of conservation of energy).
- **Step-down Transformer**: This type of transformer decreases the voltage from the primary winding to the secondary winding. In this case, as the voltage decreases, the current increases.
The relationship can be summarized mathematically by the formula \( V_p / V_s = N_p / N_s \), where \( V_p \) is the primary voltage, \( V_s \) is the secondary voltage, \( N_p \) is the number of turns in the primary winding, and \( N_s \) is the number of turns in the secondary winding.