Number 9 I need done with an explanation... Preview File Edit View Go Tools Book

Question

Number 9 I need done with an explanation...

Preview File Edit View Go Tools Bookmarks Window Help Physics Il Quiz #2 Spring 13-1.pdf (page 2 of 2) Text select Annotate Sidebar Next C PHY 2049L Q&A; I 3 site. chegg.com Most visited 9) What is the net electric field strength at point P between the two charged spheres if q 2 nc, q 8 nC, ri 10 cm and r 20 cm q2 x direction t q x direction 10) The diagram shows three charges spaced equally from the center (position P), where r -0.50 m, the magnitude of the charges are all the same except q2 is positive while the other two are negative. A) what is the magnitude of the net electric field at position P (the center of the coordinate system)? B) what direction is the net electric field pointing? 10 A) o q2 1.0 HC r2. 93 1.0 HC x 0.50 m t GE (100%) Mon 6:12 PM Q Search Bookmarks

Explanation / Answer

Electric Field by the charged sphere is same as that of point charge given by

E = kQ/r2.

Now at the given point P the net field along +ve x-direction can be written as:

Enet = E1 - E2 = kq1/r12 - kq2/r22 = 9x109 (2x10-5 - 2x10-5) = 0.

Here we took E2 negative because it exerts positive force along -ve x-direction (not +ve x-direction).

Thus the net field is zero.

Hope this helps.

Cheers.

:)

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.