Two identical magnets of diameter 1.50 cm and length 4.00 cm are dropped so they

Question

Two identical magnets of diameter 1.50 cm and length 4.00 cm are dropped so they fall through vertical pipes of identical sizes. Pipe A has a diameter of 3.00 cm, a length of 1.5 m and is made out of plastic. Pipe B has the same diameter of 3.00 cm and length of 1.5 m, and is made out of aluminum. Which magnet will reach the bottom first and why?

Magnet A will reach the bottom first. Magnet B will generate induced currents in the aluminum that create an upward magnetic force on Magnet B, slowing down its motion and allowing Magnet A to reach the bottom first.

Magnet A will reach the bottom first. Since aluminum is magnetic, Magnet B will stick to the sides of Pipe B and prevent Magnet B from falling through Pipe B, allowing Magnet A to reach the bottom first.

Magnet B will reach the bottom first. Magnet B will generate induced currents in the aluminum that create a downward magnetic force on Magnet B, speeding up its motion and causing it to fall faster than Magnet A.

Magnet B will reach the bottom first. Since plastic pipe has a greater coefficient of friction than aluminum, Magnet A will feel greater frictional force acting against its motion, allowing Magnet B to reach the bottom first.

Explanation / Answer

Answer :

---- >Magnet A will reach the bottom first.

Magnet B will generate induced currents in the aluminum that create an upward magnetic force on Magnet B, slowing down its motion and allowing Magnet A to reach the bottom first.

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