What could be true when transformer ratio is 20:1?

There are some people who are not too sure about the ratio in general. They do not understand what this means. The primary ratio is 20 times greater as compared to the secondary. There are some people who become confused with this because grammatically, the ratio should be written 1:20.

Nevertheless, this is something that you should understand especially if you are going to work with transformers. A transformer is going to be very useful for increasing or decreasing the amount of electricity used. The ratio is normally used when there are different values that are being compared.