3 75 A square wire of length 1 mass m and resistance R

Last updated: 6/8/2023

3 75 A square wire of length 1 mass m and resistance R slides without friction on parallel conducting resistance rails as in Fig 13 19 The rails are inter connected at the bottom by resistance rails so that R the wire and rails form a closed rectangular loop The plane of the rails is inclined at an angle with the horizontal and a vertical uniform magnetic field B exists within the frame Show that the wire acquires a steady velocity of magnitude V g 13 19 mgR sin 0 B 1 cos 0 OOO O O B