Two coil A and B have coefficient of mut...

Two coil A and B have coefficient of mutual inductance M=2H. The magnetic flux passing through coil A charges by 4 Weber in 10 seconds due to the change in current in B. Then

Change in current in B in this time interval is 0.5 A

Change in current in B in this time interval is 8 A

The change in current in B in this time interval is 2 A

A change in the current of 1 A in coil A will produce a change in flux passing through B by 4 Wb

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