# Uniform magnetic field of 56 t a constant current 84

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uniform magnetic field of 56 T. A constant current 84 A from a generator flows down one rail, across the wire, down the other rail back to the generator.
shiau (hms584) – Chapter 27: Magnetic Fields and Forces – Thompson – (0137) 4 Find the velocity of the wire at t = 95 s, assuming it to be at rest at t = 0. 2. Parallel to the conductor 013 (part 2 of 2) 10.0 points What is the minimum magnetic field strength required to completely take the
= (84 A) (19 m) (56 T) (95 s) 44 kg = 1 . 92971 × 10 5 m / s . 012 (part 1 of 2) 10.0 points A heavy conductor (mass m , length , resis- tance R ) is suspended by two springs each with spring constant k , and connected to a battery with electric potential V as shown in the figure. A magnetic field vector B is now imposed. springs if the potential voltage is 19 V, the conductor resistance is 15 Ω, the length is 0 . 6 m, the spring constant is 3 . 1 N / m, the conductor mass is 1 . 1 kg, and the acceleration due to gravity is 9 . 8 m / s 2 ? Which direction should the magnetic field point to have the most effect in raising or lowering the heavy conductor? 1. In the plane of the page at a 45 angle to the conductor weight of the heavy conductor off of the springs if the potential voltage is 19 V, the conductor resistance is 15 Ω, the length is 0 . 6 m, the spring constant is 3 . 1 N / m, the conductor mass is 1 . 1 kg, and the acceleration due to gravity is 9 . 8 m / s 2 ?
shiau (hms584) – Chapter 27: Magnetic Fields and Forces – Thompson – (0137) 5 I ℓ B = m g . Rearranging and using I = V R , we get B = m g R ℓ V = (1 . 1 kg) (9 . 8 m / s 2 ) (15 Ω) (0 . 6 m) (19 V) = 14 . 1842 T . 014 (part 1 of 2) 10.0 points The gravitational force on loop is downward. A rectangular loop with dimensions (hor- izontal = 0 . 23 m) × (vertical= 0 . 529 m), is suspended by a string, and the lower hori- zontal section of the loop is immersed in a magnetic field.