Nano v2 Resistance question

When I am testing an A/C load, how much resistance does the Nano v2
apply in Ohms? any? I am trying to do some calculations and that is the missing piece.

In V3.52 there is an update to the user guide that include input resistance specifications. You may find this useful, but you can also measure input DC resistance yourself with a voltmeter across the input probe to see actual values (small variations between Nano’s should be expected).