A magnetic flux of 3.0 × 10⁻⁴ Wb passes normally through an area of 6.0 cm². What is the magnetic flux density?
Correct answer A. 0.50 T
Explanation
B = Φ/A = 3.0 × 10⁻⁴ Wb ÷ 6.0 × 10⁻⁴ m² = 0.50 T. Converting 6.0 cm² wrongly to 6.0 × 10⁻² m² gives 5.0 × 10⁻³ T.
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