Why is this sum equated to 20mΩ ?loki4000 said:
Yup, my error.NascentOxygen said:
What answer did you get for the primary current?loki4000 said:
That is my answer, too.loki4000 said:
A transformer circuit works by using electromagnetic induction to transfer electrical energy from one circuit to another. It consists of two coils, known as the primary and secondary, that are wound around a shared iron core. When an alternating current flows through the primary coil, it creates a changing magnetic field that induces a voltage in the secondary coil, allowing for the transfer of energy.
The primary purpose of a transformer circuit is to step up or step down the voltage of an electrical current. This is necessary for many applications, such as power distribution, where high voltage is needed to transmit electricity over long distances, but lower voltage is required for safe use in homes and buildings.
The output voltage of a transformer circuit can be calculated using the following equation: Vsecondary = (Nsecondary/Nprimary) x Vprimary, where N is the number of turns in each coil and V is the voltage. This equation assumes an ideal transformer with no losses.
There are two main types of transformer circuits: step-up and step-down. A step-up transformer increases the voltage of the input current, while a step-down transformer decreases the voltage. There are also isolation transformers, which are used to separate two circuits and prevent electrical interference, and autotransformers, which have a single coil that serves as both the primary and secondary.
The right transformer circuit for a specific application depends on factors such as the required voltage, the amount of power to be transferred, and the frequency of the input current. It is important to consider the transformer's voltage rating, power rating, and efficiency when choosing the appropriate circuit. Consult with an electrical engineer for help in selecting the best transformer for your needs.