A Rectangular Coil Having N Turns and Measuring 15 Cm

question 35

Multiple Choice

A rectangular coil having N turns and measuring 15 cm by 25 cm is rotating in a uniform 1.6-T magnetic field with a frequency of 75 Hz.The rotation axis is perpendicular to the direction of the field.If the coil develops a sinusoidal emf of maximum value 56.9 V,what is the value of N?

• A) 2
• B) 4
• C) 6
• D) 8
• E) 10

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