Can you calculate load current using Ohm's Law?

If I had an open circuit with no load like the one pictured here on the left: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/voldiv.html And I then calculated Voc. Then I added a load resistor and I had a circuit similar to that which is pictured on the right. Could I use my previously calculated Voc and... show more If I had an open circuit with no load like the one pictured here on the left:
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/voldiv.html
And I then calculated Voc. Then I added a load resistor and I had a circuit similar to that which is pictured on the right. Could I use my previously calculated Voc and Ohm's Law to determine the load current through the load resistor? why or why not?
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