A Solenoid of Length L = 0

question 26

Multiple Choice

A solenoid of length l = 0.7 m and radius R = 5 cm stores an amount of energy U = 6 × 10^-6 J when a current I = 0.4 A passes through it. What is the winding density of the solenoid?

• A)865 turns /m
• B)472 turns/m
• C)1078 turns/m
• D)104 turns/m
• E)327 turns /m

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