What is the effect of increasing the frequency on a transformer's size?
Practice Questions
Q1
What is the effect of increasing the frequency on a transformer's size?
Increases size
Decreases size
No effect
Depends on the load
Questions & Step-by-Step Solutions
What is the effect of increasing the frequency on a transformer's size?
Step 1: Understand what a transformer is. A transformer is a device that changes the voltage of electricity using coils of wire and a magnetic core.
Step 2: Learn about frequency. Frequency refers to how often the electrical current changes direction in one second, measured in Hertz (Hz).
Step 3: Know that transformers operate based on the frequency of the electrical current. Higher frequency means the current changes direction more times in a second.
Step 4: Realize that increasing the frequency reduces the size of the transformer. This is because higher frequency allows the transformer to use a smaller core and less material.
Step 5: Understand core losses. Core losses are energy losses in the transformer due to the magnetic properties of the core material. Higher frequency reduces these losses, allowing for a smaller design.
Step 6: Conclude that with higher frequency, transformers can be made smaller while still being efficient.
