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Mumz [18]
3 years ago
5

To get an idea of the order of magnitude of inductance, calculate the self-inductance in henries for a solenoid with 900 loops o

f wire wound on a rod 6 cm long with radius 1 cm?
Physics
1 answer:
Allisa [31]3 years ago
4 0

Answer:

The  self-inductance is  L =  0.0053 \ H

Explanation:

From the question we are told that  

      The number of loops is  N  =  900

      The  length of the rod is  l  =6 \ cm  = 0.06 \ m

      The radius of the rod is  r =  1 \ cm =  0.01 \ m

The  self-inductance for the solenoid is mathematically represented as

        L =  \frac{\mu_o  * A  *  N^2 }{l}

Now the cross-sectional of the solenoid is mathematically evaluated as

        A =  \pi r^2

substituting values  

         A =3.142 *   0.01 ^2

        A = 3.142 *10^{-4} \  m^2

and  \mu_o is the permeability of free space with a value  \mu_o  =   4\pi * 10^{-7} N/A^2

    substituting values into above equation

          L =  \frac{   4\pi * 10^{-7} ^2*  3.142*10^{-4}  *  900^2 }{0.06}

          L =  0.0053 \ H

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steposvetlana [31]

Answer:

133.8 N

Explanation:

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Therefore, the weight of the dog on this planet would be:

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Talja [164]

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a=\frac{\frac{10kg·m}{s^{2}}}{50kg}

The s^2 and 50 kg you multiply

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The kg's cancel and 10/50 is 1/5

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2 years ago
Use this free body diagram to help you find the magnitude of the force F2 needed to keep this block in static equilibrium. WILL
oksian1 [2.3K]
Static equilibrium means that all forces are equal, so make this easiest you want to break F1 into it's horizontal and vertical components. As there are no other forces acting in the horizontal, we know the horizontal component of F1 is 40N. This allows the vertical component to be found using pythagorus theorem. After finding the vertical and horizontal components, you just have to add the vertical components to find the difference between the up and down.

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A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight
Ede4ka [16]

it will take 36 seconds


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