1. The problem statement, all variables and given/known data 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 Ω. 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. 2. Relevant equations ΔB = 5.00T - 1.50T = 3.5T (which I will use) A = 0.005 m2 R = 0.02Ω t = 0.02s Flux = BA ε = Flux/t I = ε/R P = ε2/R 3. The attempt at a solution Flux = 3.5T X .005m2 = 0.0175 Wb ε = 0.0175 / 0.02s = 0.875 V I = 0.875V / 0.02Ω = 43.75A and P = 0.8752/0.02 = 38.28w My question is: Did I handle correctly the difference in Magnetic field by using 5-1.5?