A woman is standing at the rim of a nonuniform cylindrical horizontal platform initially at rest. The platform is free to rotate
1 answer:
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Answer:
Explanation:
We can assume this problem as two concentric spherical metals with opposite charges.
We have also to take into account the formulas for the electric field and the capacitance. Hence we have
Where k is the Coulomb's constant. Furthermore, by taking into account the expression for the potential and by integrating
Hence, the capacitance is
but R1=a and R2=b
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Answer:
The potential difference through which an electron accelerates to produce x rays is .
Explanation:
It is given that,
Wavelength of the x -rays,
The energy of the x- rays is given by :
The energy of an electron in terms of potential difference is given by :
So,
V is the potential difference
e is the charge on electron
V = 12431.25 volts
or
So, the potential difference through which an electron accelerates to produce x rays is . hence, this is the required solution.