00:01
So let us consider the expression for the total field resistance of the generator.
00:06
Rf plus r adjacent.
00:10
This is 30 plus 63 which is 93 ohm.
00:16
Now if is equals to vf plus rf plus r adjacent.
00:25
So this will be 430 divided by 93 which is 4 .6 ampere.
00:33
Now from the magnetization curve for the current 4 .6 ampere the voltage obtained is ea0 is equals to 400 v and the speed of 1800 r per minute.
00:56
So but the generator has 1500 r per minute and the relation can be expressed as ea divided by ea0 is equals to n divided by n0.
01:07
Now this is equals to ea divided by 400 v is equals to 1500 divided by 1800.
01:22
So from here we will get ea is equals to 333 v approximately.
01:30
Now at no load condition the terminal voltage is 333 v and this is the answer for the a part.
01:38
Now in the b part we need to write the expression for terminal voltage.
01:42
Vt is equals to ea minus iara.
01:48
So 333 minus 325 multiplied by 0 .1 approximately 301 volt...