(solved) best way to simulate 30amps on components.

[whitevamp]

i am want to see how components react to 30 amps of current and i have used ltspice, multisim, and Circuit Wizard for this but i had noticed that if i place a dmm/ get the voltage at any node it will show 30kv useing an amp source of 30, but if i use 17vdc there is no amps/ very little.

so what is the correct way to simulate this? 

PS: im looking at making a variable 17VDC 30AMP ( minus of coarse all the voltage drops from the components. ) CC/CV bench power supply from an old rv inverter  transformer that is 17VDC 30AMP.

[alanb]

The load resistance on the output of your simulation will need to be 17/30 Ohm  i.e. 0.57 Ohm to draw 30 Amp from a 17 Volt supply. 

[Delta]

Ohm's law.

[whitevamp]

I see what my mistake was now.
I was just using an amps source, and not a voltage source and then using ohs law to figure out the correct resistor value.   
thanks for the help with this issue/question.