If a current of 3 A dc flows in the series field winding of your motor what wouldthe resultant voltage drop be?

The voltage drop across the series field winding of a motor can be calculated using Ohm's Law (V = I × R), where V is the voltage drop, I is the current, and R is the resistance of the winding. If the resistance of the series field winding is known, you can multiply it by the current of 3 A to find the resultant voltage drop. Without the specific resistance value, the exact voltage drop cannot be determined.