158 damentals Industri I d d s ia l l Rob bo tics s Fu un Copyright Goodheart-Willcox Co., Inc. Copyright Goodheart-Willcox Co., Inc. 10. How do the currents recorded in step 9 compare with the current recorded in steps 4 and 5? 11. How did the action of the 6V lamp in steps 4 and 5 compare with the action of the lamp in step 9? Analysis 1. What are normally open contacts? 2. What are normally closed contacts? 3. What is the meaning of the term pickup current? 4. What is the meaning of the term dropout current? 5. Using Ohm’s law, compute the voltage across the relay coil when the relay is energized (see steps 1 and 4).