Show the work... 4. A positively charged particle enters a region two parallel p

Question

Show the work...

4. A positively charged particle enters a region two parallel plates. (top between bottom) are oppositely charged, hence there exists a uniform electric field between the plates with a gravitational field). Assume the particle travels straight through the region completely un-deflected and exits. a) Determine and identify (below) the polarities of the plates and the resulting Electric Field direction inside the plated region needed so the particle travels through un-deflected: b) If the particle has a mass of 28.5 mg and a charge of +7.6 HC, determine the Electric Field Strength E needed inside the plated region so the particle travels through un-deflected net 0: q

Explanation / Answer

a)

Lower plate positively charged, Upper plate negatively charged.

Electric field goes from down to up direction.

b)

q = 7.6 x 10-6 C

m = 28.5 mg = 28.5 x 10-3 g = 28.5 x 10-6 kg

the weight of the particle is balanced by the electric force.

hence , qE = mg

(7.6 x 10-6) E = (28.5 x 10-6) (9.8)

E = 36.75 N/c

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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