Horatio drew a diagram to illustrate how magnetism is produced by electric currents
2 answers:
Answer:
B)The magnetic field does not continually spread outward from the wire.
Explanation:
The lines of the magnetic field produced by an electrical current passing through a wire are concentric circles around the wire. The intensity of the magnetic field decreases as the inverse of the distance from the wire, .
Therefore, the error in the figure is that the magnetic field lines do not spread out radially from the wire, but they should be concentric circles around the wire itself.
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The mass on the spring is 0.86 kg
Explanation:
The period of a mass-spring system is given by the equation
where
m is the mass
k is the spring constant
In this problem, we have:
k = 88.7 N/m is the spring constant
The system makes 15 oscillations in 9.24 s: therefore, the period of the system is
Now we can re-arrange the first equation to solve for the mass:
Learn more about period:
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