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1. |
_The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength?$? |
A. | 2500 AT/m |
B. | 250 AT/m |
C. | 25 AT/m |
D. | 2.5 AT/m |
Answer» C. 25 AT/m | |