Answer:

Explanation:
We know that the magnetic Field of the Earth is 50\mu T, so the equation for
Hall effect voltage und magnetic field are defined as,


So,



Answer:
b- a bicycle sitting on the ground
Explanation:
'Static' means it's not moving.
So, only the answer listed as "a bicycle sitting on the ground" corresponds to that condition.
All others possible answers describe something that is moving (an apple falling, a motorcycle accelerating, a car moving at a constant speed). Even if they are going at a constant speed, they are moving, so not static.
Answer:the force will remain same
Explanation:
because force is equal to the ratio of magnitude and distance
The answer is bend towards normal.