A Long Solenoid (Radius = 3

question 24

Multiple Choice

A long solenoid (radius = 3.0 cm, 2 500 turns per meter) carries a current given by I = 0.30 sin(200 t) A, where t is measured in s. When t = 2.5 ms, what is the magnitude of the induced electric field at a point which is 4.0 cm from the axis of the solenoid?

• A) 9.3 × 10−³ V/m
• B) 8.0 × 10−³ V/m
• C) 6.7 × 10−³ V/m
• D) 5.3 × 10−³ V/m
• E) 1.9 × 10−³ V/m

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