Electromagnetic Damping Time Constant
A conducting rod of mass m and length L is placed on two frictionless, parallel conducting rails separated by a distance L. The rails are connected by a resistor R to form a closed circuit. A uniform magnetic field B is directed perpendicular to the plane of the circuit. If the rod is given an initial velocity , what is the time required for the rod’s speed to decrease to ?
A
mR/B^2L
B
mR/B^2L^2
C
mR/BL
D
mR^2/B^2L^2
Question Leaderboard
Not enough data yet to show leaderboard.