true or false onceptual physics 2 questions from chapters 23 and 24. 1. [ ] Alth
ID: 1531357 • Letter: T
Question
true or false onceptual physics 2 questions from chapters 23 and 24.
1. [ ] Although one can electrify a glass rod by rubbing it with silk, no net charge is created.
2. [ ] A proton carries positive charge, and weights the same as an electron.
3. [ ] The elementary charge equals 1.6 x 10-9 C.
4. [ ] At any point P, the total electric field due to a group of point charges equals the vector sum of the electric fields of the individual charges.
5. [ ] Electric field vector is tangent to the electric field line at each point.
6. [ ] No two electric field lines can cross or touch.
7. [ ] The force on a negative charge is in the opposite direction of the electric field.
8. [ ] Electric flux can be understood as the number of electric field lines passing through a surface.
9. [ ] Gauss's law states that the net electric flux E through any closed Gaussian surface is equal to the net charge inside the surface divided by 40.
10. [ ] Gauss's law is useful for calculating electric field when the charge distribution is highly symmetrical.
11. [ ] At electrostatic equilibrium, the electric field is zero everywhere inside a conductor, and any charge can only be distributed on the surface of the conductor.
12. [ ] Electric field just outside a charged conductor is perpendicular to the surface and has a magnitude /20.
Explanation / Answer
1) true there is no net creation of charge. it's just being transfered.
2)false proton is heavier than electron.
3) true this is a fact " The elementary charge equals 1.6 x 10-9 C." which equals charge on an electron
4)true electric field is a vector quantity so vector rules are aplicable
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