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4. The graph below shows how the current decreases as a function of time
in an RL circuit when a DC voltage of 15 V is disconnected. What is the
inductance of the circuit?
1,2
1
0,8
3 0,6
0,4
0,2
10
20
30
40
50
60
70
80
90
100
t (ms)
I (A)

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