A white dwarf is a very dense star, with its ions and electrons packed extremely close together. Each electron may be considered to be located within a region of size x= 1.5 x 10-12 m. Estimate the minimum speed of the electron. Do you think that the effects of relativity will be important for these stars?
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- An electron is in a stable circular orbit of radius R around a grounded hollow conducting sphere of radius r.a) Find the location of the image charge which can replace the sphere without altering the potential outside thesphere.b) Find the strength of this image charge.c) Derive the expression that will determine the speed of the electron.Q-2: Two concentric conducting spherical shells of radii r¡ and r, > rz. The inner shell carries a charge +Q while the outer shell carries a charge +2Q as shown. Assuming V = 0 as r → ∞, Calculate: a. The electric field vectors: E1(r r2) b. The electric potentials: V, (r r2) c. The electric potential difference between the two shells: AVNow you have a nucleus with 19 protons, placed at x = 5.1 Angstroms. What TWO values of x (along the x-axis) will the total electrostatic potential V be equal to zero? 0.28 Angstroms and -0.26 Angstroms -0.11 Angstroms and 0.08 Angstroms 0.11 Angstroms and -0.08 Angstroms -0.28 Angstroms and 0.26 Angstroms
- I have placed an electron at the origin. The grid spacing is 1 Angstrom per small square. Now you have a nucleus with 7 protons at x = 3.5 Angstroms on the x-axis. What is the value of the electrostatic potential V at a point on the positive y-axis, at y = 2.5 Angstroms? (image included) -5.8 V 23.4 V 7.1 V 17.7 VNow you have a nucleus with 16 protons at x = 2.7 Angstroms on the x-axis. What is the value of the electrostatic potential V at a point on the positive y-axis, at y = 3.1 Angstroms?Now you have a nucleus with 5 protons at x = 2.0 Angstroms on the x-axis. What is the value of the electrostatic potential V at a point on the positive y-axis, at y = 3.3 Angstroms? 7.2 V 14.3 V -4.4 V 18.6 V
- Now you have a nucleus with 7 protons, placed at x = 6.5 Angstroms. What what TWO values of x (along the x-axis) will the total electrostatic potential V be equal to zero? 1.08 Angstroms and -0.81 Angstroms -0.54 Angstroms and 0.57 Angstroms 0.54 Angstroms and -0.57 Angstroms -1.08 Angstroms and 0.81 AngstromsA research Van de Graaff generator has a 2.00-mdiameter metal sphere with a charge of 5.00 mC on it. (a) What is the potential near its surface? (b) At what distance from its center is the potential 1.00 MV? (c) An oxygen atom with three missing electrons is released near the Van deGraaff generator. What is its energy in MeV at this distance?For problem 49 of the text, calculate the initial speed of the third electron in m/s using a separation of the other two electrons of 0.66 m. Answer in 5 sig figs!!!