00:01
According to the question that we are given v1 is equal to 120 ohms.
00:05
Similarly, f1 that is the frequency number 1 at 120 volt is given to us as 25 hertz.
00:14
Similarly, in the question we are given that f2 is equal to 60 hertz.
00:19
Now, similarly we need to find the velocity v2 for f2.
00:24
We are told that the core flux density, core flux density for the transformer is remain unchanged, is unchanged or constant.
00:40
Now, with this data we need to find the maximum permissible, this is the maximum permissible primary voltage, permissible primary voltage, primary voltage.
00:56
Now, as we are given that the core flux density is constant or unchanged, we can use the formula v1 divided by v2 is equal to f1 divided by f2...