Given: A number 12/4 type SO cord is used to supply a portable 120/240 volt single phase incandescent lighting load. One conductor is the grounding conductor, one conductor carries only the circuit unbalanced trunk. What is the amp of the ungrounded conductors ?

Given: A number 12/4 type SO cord is used to supply a portable 120/240 volt single phase incandescent lighting load. One conductor is the grounding conductor, one conductor carries only the circuit unbalanced trunk. What is the amp of the ungrounded conductors ?