A hollow metal sphere is electrically neutral (no excess charge). A smal amount
ID: 2077614 • Letter: A
Question
A hollow metal sphere is electrically neutral (no excess charge). A smal amount of negative charge is suddenly placed at one point P on this metal sphere, we check on this exoevs negative charge a few seconds later we will fnd one of the AL of the excuss charge remains right around P. (b) The excess charge has distributed itself evenly over the outside surface of the sphere, (c) The excess charge is evenly distrbuted over the inside and outside surface. (d) Most of the charge is stllatpoint P, but some will have spread over the sphere. (e) There will be no excess charge lott. A hollow sphere made out of electricaly insulating materialis electrically neutral (no excess charge). A small amount of negative charge is suddenly placed at one point Pon the outside of this sphore, if we chock on this exoess nogatve charge a few seconds later we wil find one of the following possblties: a) of the excess charge remains right around P (b) The excess charge has distributed evenly over the outside surface of (c) The excess charge is eve nly distributed over the inside and outside surface. (d) Most of the charge is still at point P, but some wil have spread over the (e) There will be no excess charge left. For questions 3.5. smal objects each wth net charge of a exer a foroe of magnitude Fon .ach we noplace one of ee otjects with anoener whose net charge is +40 F: what is the The original magnitude of the force the acharge was magnitude of the force on now? other (a) 16F What the magnitude ofthe force on the .40 eharge? (a) 16F Ned we move the "Q end"a charges to be a sme as far aport as they were: Now what the magnause ofthe force on the *4Q?Explanation / Answer
1. Since it is a metal sphere(conducting) hence the charge will spread evenly on the outside surface.
Correct option is b
2. Since the sphere is insulating charge will remain at point P.
Correct option is a
3. Since force is directly proportional to charge hence the force will be 4F.
4. Force applied on each charge is equal and opposite hence force will be 4F.
5. Force is inversely proportional to distance squared. The new force will be 4F/9.
6. Using Vector addition, correct answer is d
7. Forces are equal and opposite, hence correct option is b
8. Since force is in the +x direction q1 must be -ve charge. Putting a +ve charge on the x-axis will increase the magnitude of force without changing direction. The correct option is b.
9. Field strength will increase. The correct option is b.
10. because of a constant electric field, the charge will experience a constant force and hence move with constant acceleration. the correct option is c.
11. Electric potential energy will remain constant as the field is uniform. The correct option is a.
12. Since electric field is uniform, force at each location will be same but not zero. The correct option is d.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.