Analysis shows that the current across a 15 mH induction coil changes from 180 mA to 80 mA in a duration of 20 μs. Calculate the potential difference across the inductor, and specify if the potential difference increases or decreases in the direction of the current.

• A. 75 V and increases in the direction of the original current.
• B. 75 V and decreases in the direction of the original current.
• C. 60 V and increases in the direction of the original current
• D. 60 V and decreases in the direction of the original current

Answer: (A)