A 380 turn solenoid of length 380 cm and radius 280 cm, Ask an Expert

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A 380 turn solenoid of length 38.0 cm and radius 2.80 cm carries a current of 4.90 A. Find the following.

(a) the magnetic field strength inside the coil at its midpoint

(b) the magnetic flux through a circular cross-sectional area of the solenoid at its midpoint

T · m2

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