Consider point a which is 62 cm north of a ?3.8 ? C point charge, and point b wh

ID: 1305813 • Letter: C

Question

Consider point a which is 62 cm north of a ?3.8?C point charge, and point b which is 88 cm west of the charge in (Figure 1) .

A) Determine Vb?Va . Please express using 2 sig figs & appropriate units. Vb?Va=?

B) Determine the magnitude of E?b?E?a . Please express using 2 sig figs & appropraite units.

C) Determine the direction of E?b?E?a . Please express with 2 sig figs & appte units.

? = ?

C) Determine the direction of E?b?E?a . Please express with 2 sig figs & appte units.

? = ? counterclockwise from the positive x axis.

TAKE HELP FROM

Consider point a which is 72 cm north of a point charge, and point b which is 88 cm west of the charge Q=-3.8 ?C.

(A) Solve for Va and Vb using given info.

Va = kQ/r = (9e9)(-3.8e-6) / (0.72) = -47500 V

Vb = kQ/r = (9e9)(-3.8e-6) / 0.88 = -38900 V

Vb - Va = 8.6e3 V (ANSWER)

==================================
(B)

Eb = kQ/r^2 = (9e9)(3.8e-6) / (0.88^2) = 44200

Ea = kQ/r^2 = (9e9)(3.8e-6) / (0.72^2) = 66000

|Eb-Ea| = ? [(44200^2) + (66000^2)] = 79400 N/C (ANSWER)

=====================================
(C)

Tan ?

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