Explanation:
its easy everone can do it .....let me know
It's B because when you throw something it doesn't go up it slowly descends downward
The universe is 13.8 billion years old.
Answer:
(a) 0.345 T
(b) 0.389 T
Solution:
As per the question:
Hall emf, 
Magnetic Field, B = 0.10 T
Hall emf, 
Now,
Drift velocity, 

Now, the expression for the electric field is given by:
(1)
And

Thus eqn (1) becomes
where
d = distance
(2)
(a) When 

(b) When 

Magnetic fields are an area around a magnetic material or a moving electric charge with which the force of magnet