What Is the Minimum Frequency with Which a 300-Turn,flat Coil

question 39

Multiple Choice

What is the minimum frequency with which a 300-turn,flat coil of cross sectional area 370 cm² can be rotated in a uniform 25-mT magnetic field if the maximum value of the induced emf is to equal 8.6 V?

• A)0.20 Hz
• B)2.2 Hz
• C)4.9 Hz
• D)31 Hz
• E)0.031 Hz

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