A horizontal wire of length 0.26 m, carrying a current of 7.2 A, is placed in a uniform external magnetic field. When th
Posted: Thu Jul 07, 2022 2:14 pm
A horizontal wire of length 0.26 m, carrying a current of 7.2 A,is placed in a uniform external magnetic field. When the wire ishorizontal, it experiences no magnetic force. When the wire istilted upward at an angle of 20°, it experiences a magnetic forceof 6.9 × 10-3 N. Determine the magnitude of the external magneticfield.