{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Homework 02-problems

Homework 02-problems - le(jml2943 Homework 02 de...

This preview shows pages 1–2. Sign up to view the full content.

le (jml2943) – Homework 02 – de lozanne – (56785) 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001(part1of2)10.0points A uniformly charged conducting plate with area A has a total charge Q which is positive. The figure below shows a cross-sectional view of the plane and the electric field lines due to the charge on the plane. The figure is not drawn to scale. E E + Q P Find the magnitude of the field at point P, which is a distance a from the plate. Assume that a is very small when compared to the dimensions of the plate, such that edge effects can be ignored. 1. bardbl vector E P bardbl = ǫ 0 Q a 2 2. bardbl vector E P bardbl = Q 4 π ǫ 0 a 3. bardbl vector E P bardbl = 4 π ǫ 0 a Q 4. bardbl vector E P bardbl = Q 2 ǫ 0 A 5. bardbl vector E P bardbl = ǫ 0 Q A 6. bardbl vector E P bardbl = Q 4 π ǫ 0 a 2 7. bardbl vector E P bardbl = 2 ǫ 0 Q A 8. bardbl vector E P bardbl = Q ǫ 0 A 9. bardbl vector E P bardbl = 4 π ǫ 0 a 2 Q 002(part2of2)10.0points Two uniformly charged conducting plates are parallel to each other. They each have area A . Plate #1 has a positive charge Q while plate #2 has a charge 3 Q . + Q #1 3 Q #2 P x y Using the superposition principle find the magnitude of the electric field at a point P in the gap. 1. bardbl vector E P bardbl = 3 Q 2 ǫ 0 A 2. bardbl vector E P bardbl = Q 3 ǫ 0 A 3. bardbl vector E P bardbl = 2 Q ǫ 0 A 4. bardbl vector E P bardbl = 4 Q ǫ 0 A 5. bardbl vector E P bardbl = Q ǫ 0 A 6. bardbl vector E P bardbl = Q ǫ 0 7. bardbl vector E P bardbl = 0 8. bardbl vector E P bardbl = 3 Q ǫ 0 A 9. bardbl vector E P bardbl = Q 2 ǫ 0 A 10. bardbl vector E P bardbl = 5 Q ǫ 0 A 003 10.0points A large flat sheet of charge has a charge per unit area of 7 . 7 μ C / m 2 . Find the electric field intensity just above the surface of the sheet, measured from its midpoint.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}