The best viewing distance is the distance at which the virtual image produced is best viewed at. I'm not sure how this is calculated as it is usually a given value, which is 25cm in this case.
Homework Statement
Hi. I'm required to calculate the magnification of a microscope with the variables given. I have calculated this, but was just wondering if the best viewing distance is bigger than the length of the microscope, would this have any effect?
Homework Equations
N/A
The Attempt...
Hi,
At university we are using the Borland C++ 5.5 compiler, however, this does not work on Vista, which my home computer has.
I was therefore wondering what C program compiler everyone would recommend which works on Windows Vista?
Thanks,
Luke.
Ah, forgot about rms. Thanks.
That equation was given a bridge rectifier (4 diodes) with a capacitor and load resistor, but exluding the regulator. So i assume to calculate Vac, if i want Vdc of 5, i simply calculate 5+the voltage acrross the regultor, all divided by 1.41.
I've got another problem. For a full wave bridge, with a capacitive filter, we are told the following relationship between Vdc [V(Regout)-V(Rectifidn)] and Vac [V(Secondary)]:
Vdc = 1.41 x Vac
However, I'm obtaining the following results...
Yeah, had a suspicion it might have been that, but it took me a while to work out how to enter an expression. Only started using the program a few days ago, so I'm still getting used to it.
http://img218.imageshack.us/img218/138/ltspice2rc0.jpg
Many thanks for your help.
Homework Statement
I am to build a linear power supply in four stages. However, at stage two, i have to add a bridge rectifier to the ouput of my transformer. My lecturer at university says i should get a graph that is a sine wave, with the negative values reflected into the positive x-axis...