Statement of a problem № 41770


A technician wearing a brass bracelet enclosing area 0.005 00 m2 places her hand in a solenoid whose magnetic field is 5.00 T directed perpendicular to the plane of the bracelet. The electrical resistance around the circumference of the bracelet is 0.020 0 (. An unexpected power failure causes the field to drop to 1.50 T in a time of 20.0 ms. Find (a) The current induced in the bracelet and (b) The power delivered to the bracelet. Note: As this problem implies, you should not wear any metal objects when working in regions of strong magnetic fields.

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