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The decrease in gravitational potential energy of the system is given by
where
m is the mass, g is the gravitational acceleration, and is the variation of height of the system.
also corresponds to the weight of the diver, therefore if we rearrange the equation and we use
and
, we can find her weight:
Answer:
r = 0.05 m = 5 cm
Explanation:
Applying ampere's law to the wire, we get:
where,
r = distance of point P from wire = ?
μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²
I = current = 2 A
B = Magnetic Field = 8 μT = 8 x 10⁻⁶ T
Therefore,
<u>r = 0.05 m = 5 cm</u>