The lantern rises up because the __________ of the _________inside the lantern is _________ compared to the air around it
2 answers:
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Answer:
a) ΔV = 0.1875 V , b) v = 9.73 m / s
Explanation:
For this exercise we can use Necton's second law, as the speed is constant the forces on the driver are equal
= 0
= F_{B}
q E = q v B
E = v B
The electrical force induced in the conductor is
ΔV = E l
ΔV = v B l
Let's calculate
ΔV = 2.5 0.75 0.10
ΔV = 0.1875 V
b) If ΔV = 0.73 what speed should it have
v = DV / B l
v = 0.73 / 0.75 0.1
v = 9.73 m / s