# Answer on Electromagnetism Question for Shamar

Question #71866

A steel ring, having a mean circumference of 750 mm and a cross-sectional area

of 500 mm

2

, is wound with a magnetizing coil of 120 turns. Using the following

data, calculate the current required to set up a magnetic flux of 630 μWb in the

ring.

Flux density (T) 0.9 1.1 1.2 1.3

Magnetic field strength (A/m) 260 450 600 820

of 500 mm

2

, is wound with a magnetizing coil of 120 turns. Using the following

data, calculate the current required to set up a magnetic flux of 630 μWb in the

ring.

Flux density (T) 0.9 1.1 1.2 1.3

Magnetic field strength (A/m) 260 450 600 820

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