A 0.25 kg ball containing 4.55×108 excess electrons is dropped into a 150 m vertical shaft. At the bottom of the shaft, the ball suddenly enters a uniform horizontal 0.50 T magnetic field directed from east to west. If air resistance is negligibly small: a) Find the magnitude of the force that this magnetic field exerts on the ball just as it enters the field. b) What is the direction of the force that this magnetic field exerts on the ball just as it enters the field?
A 0.25 kg ball containing 4.55×108 excess electrons is dropped into a 150 m vertical shaft. At the bottom of the shaft, the ball suddenly enters a uniform horizontal 0.50 T magnetic field directed from east to west. If air resistance is negligibly small: a) Find the magnitude of the force that this magnetic field exerts on the ball just as it enters the field. b) What is the direction of the force that this magnetic field exerts on the ball just as it enters the field?
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 81AP: A 5.0-m section of a long, straight wire carries a current of 10 A while in a uniform magnetic field...
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A 0.25 kg ball containing 4.55×108 excess electrons is dropped into a 150 m vertical shaft. At the bottom of the shaft, the ball suddenly enters a uniform horizontal 0.50 T magnetic field directed from east to west. If air resistance is negligibly small:
a) Find the magnitude of the force that this magnetic field exerts on the ball just as it enters the field.
b) What is the direction of the force that this magnetic field exerts on the ball just as it enters the field?
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