PHYS 1202 : Physics 2 Exam 3
Document Summary
The magnitude of the magnetic field, which varies with time, is b. What is the magnitude of the induced current in the coil at 0. 10 s: the magnetic field of the earth at a certain location is directed vertically downward and has a magnitude of 50. 0 t. A proton is moving horizontally toward the west in this field with a speed of 6. 20 106 m/s. What are the direction and magnitude of the magnetic force the field exerts on the proton: a wire having a mass per unit length of 0. 500 g/cm carries a 2. 00-a current horizontally to the south. What are the direction and magnitude of the minimum magnetic field needed to lift this wire vertically upward: in figure 1, the cube is 40. 0 cm on each edge. Four straight segments of wire ab, bc, cd, and da form a closed loop that carries a current i = 5. 00 a in the direction shown.
