The number of turns in the two coupled coils are 500 and 1500 respectively. When a current of 5 A flows in coil 1, the total flux in coil 1 is 0.6 mWb and the second coil has flux linking 0.3 mWb. Find the coefficient of coupling.
1
0.5
2
0.8
3
0.7
4
0.6
5
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