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In this blog using the HP 50g, I will show you how to get to the built in equation library and solve equations for straight wire magnetism. The units for such is Tesla. If you are required to answer in Gauss you will need to convert. After turning on your HP 50g:
Scroll down to #12 or type in 12 (Equation Library)
PressOK.IfSoft Menumode is on you will see four boxes.Eqlib Colib Mes Utils. ChooseEQLIB. This is for the equation library.
In the library there are many choices. Today we will exploreMagnetism. Go ahead and scroll down, pressENTER.
This brings us to today's topic.Straight Wire. PressENTER. You should now see the see the equation. The soft key choices are now
Solv Equ Vars Pic -->Stk Exit
PIC will show you a visual of the straight wire equation.
Vars gives a description of each variable that can be used in the equation.
EQN is the equation itself. The --> Stk puts the equation onto the stack.
The main soft key choice is Solv. This is the equation solver. To enter numerical information you must first key in the constant ex: 5_cm radius and 4_A current; -press 5 then press F2Bthe key directly under thersoft key menu, then 4 and F4Dfor current...soft key menuI.
Now to solve for B we must first press the White Right Shift key <-- and then F5E(B soft key menu)
Then solver should output the answer. Play around with different equations to get a feel for the powerful HP 50g!
This is a simple 555 timer circuit however, it has been redesigned by Bits. My idea of circuits and TTL components should have a bit more color options and since they (colorful TTL's) don't exactly exist I thought I'd just give the world a taste of what future circuits could look like when future engineers take office!
I used Multisim software and Ultiboard to come up with this unique red color for the 555 Timer. Ultiboard allows the user to modify almost any component on the circuit. Another fantastic feature was the option to change the shape of the pcb board. No more boring rectangles! I have included some of the different shapes that were possible. Here's a quick video!