Please solve ALL question and show step by step work if possible (Thank You) If

Question

Please solve ALL question and show step by step work if possible (Thank You)

If excess charge is put on a spherical conductor, A) it remains where it was placed B) it spreads a little from where it was placed but not over the whole sphere C) it spreads uniformly over the surface of the sphere if the sphere is small D) it spreads uniformly throughout the volume of the conductor E) it spreads uniformly over the surface of the sphere One type of medical imaging process is called positron emission tomography. Radioactive material is injected into a patient; during the radioactive decay material emits a positron, which then interacts with an atomic electron, emitting gamma rays, which are detected by the imager. This gamma ray called: A) pair production B) annihilation C) absorption D) alpha decay E) fission A nucleus of carbon 14 has 6 protons and 8 neutrons. The atomic number and mass number of carbon 14 are respectively, A) 6 and 8 B) 6 and 14 C) 8 and 14 D) 14 and 20 E) 14 and 22 Comparing the field of a single point charge with the field of an electric dipole, A) the field of the point charge decreases more rapidly with distance B) the field of the point charge decreases less rapidly with distance C) the field of the point charge decreases more rapidly with distance but only along the dipole axis A disk with a uniform positive surface charge density lies in the x-y plane, centered on the origin. Along the positive z axis, the direction of the electric field is: A) in the +z direction B) in the -z direction C) in the +x direction D) in the +y direction

Explanation / Answer

3.excess charge given to a spherical conductor spreads uniformly on the upper surface of the conductor

5.anhilation

6.6,14

9.B

10.A

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