A coil wound over an iron carries a certain current and establishes flux in the ring. If the area of a cross-section of the ring is doubled, the flux in the core _____.

is double of the previous value

A coil wound over an iron carries a certain current and establishes fl

1.	A coil wound over an iron carries a certain current and establishes flux in the ring. If the area of a cross-section of the ring is doubled, the flux in the core _____.
A.	is double of the previous value
B.	is half of the previous value
C.	is same as the previous value
D.	is not possible to predict
Answer» B. is half of the previous value

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A coil wound over an iron carries a certain current and establishes flux in the ring. If the area of a cross-section of the ring is doubled, the flux in the core _____.

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