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Q.7. A magnetic circuit has relativepermeability 1000 and length of 50 cmwith cross-sectional area of 4cm. Theamperes required through a coil of 1000turns to produce the flux of 2m Wb are- A. *(A) 3.98O (B) 5.28O (C) 4.989O (D) 1.989 |
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