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The concept that must be applied to solve this problem is that of the magnetic field on Toroid described since the law of Ampere. Mathematically the magnetic field is determined as
Where
= Permeability constant
N = Number of loops
I = Current
r = Radius
As we can see the magnetic field inside a Toroid is NOT uniform, since it is highly proportional to the radius. Which means that as the radius increases the magnetic field decreases.
Therefore the correct answer is: FALSE
The cyclist is moving by uniformly accelerated motion, with an initial velocity of 
and an acceleration of 
.
The acceleration is given by
where
is the final velocity and 
is the time between the end and the beginning of the motion, and in our case it is 1.75 s. Therefore, from this relationship we can find the final velocity:
The acceleration is given by
where
The frequency of the 10th harmonic is 800 Hz
Explanation:
The frequency of the nth-harmonic for the standing waves in a string is given by the equation
where
is the fundamental frequency of the string
In this problem, we are given the frequency of the 3rd harmonic:
Which can be rewritten in terms of the fundamental frequency
So we find :
Now that we have the fundamental frequency, we can find the frequency of the 10th harmonic, with n = 10 :
Learn more about waves:
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