Answer:
I = 2.48 10⁻² A
Explanation:
The magnetic field produced by a solenoid disproportionate to the density of turns and the current passing through the wire
B = μ₀ n I
Where μ₀ is the magnetic permeability that you are worth 4π 10⁻⁷ N/A²
Let's calculate the density of turns.
n = N / L
n = 5000 / 3.0
n = 1666.67
Let's reduce the field to SI units
B = 52 μT = 52 10⁻⁶ T
Let's calculate the current
I = B / μ₀ n
I = 52 10⁻⁶ / (4π 10⁻⁷ 1666.67)
I = 2.48 10⁻² A
The 4 fourth row of the graph is a quadratic graph
<span>a. To find work we need to know force and distance; to find power we need to know force and velocity.</span>