In the Figure,the Current in a Solenoid Having No Appreciable

question 41

Short Answer

In the figure,the current in a solenoid having no appreciable resistance is flowing from b to a and is decreasing at a rate of 9.6 A/s.The self-induced emf in the solenoid is found to be 8.4 V. (a)What is the self-inductance of the solenoid?
(b)Which point,a or b is at higher potential?

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