Question
Physics Question on Electromagnetic induction
A magnet is dropped down an infinitely long vertical copper tube. Then
A
the magnet moves with continuously increasing velocity and ultimately acquires a constant terminal velocity
B
the magnet moves with continuously decreasing velocity and ultimately comes to rest
C
the magnet moves with continuously increasing velocity but constant acceleration
D
the magnet moves continuously increasing velocity and acceleration.
Answer
the magnet moves with continuously increasing velocity and ultimately acquires a constant terminal velocity
Explanation
Solution
The induced e.m.f. starts opposing the motion.