5 volt supply, 5kohm load current = 1mA (5/5000)
Note that non-linear components such as semiconductors (transistors, diodes, LEDs etc) do not comply with ohms law (ie measuring their "resistance" using a test meter may not be representative of their "resistance" when powered via a different voltage source) so you need to exercise some degree of caution when basing your assumptions of load resistance. Resistance is in quotes to indicate that they are non-linear