One type of electric quadrupole consists of two dipoles placed end to end with their negative charges (say) overlapping; that is, in the center is −2 Q flanked (on a line) by a +Q to either side (Fig. 21–74). Determine the electric field E → at points along the perpendicular bisector and show that E decreases as 1/ r 4 . Measure r from the −2 Q charge and assume r ≫ ℓ. FIGURE 21–74 Problem 84.
One type of electric quadrupole consists of two dipoles placed end to end with their negative charges (say) overlapping; that is, in the center is −2 Q flanked (on a line) by a +Q to either side (Fig. 21–74). Determine the electric field E → at points along the perpendicular bisector and show that E decreases as 1/ r 4 . Measure r from the −2 Q charge and assume r ≫ ℓ. FIGURE 21–74 Problem 84.
One type of electric quadrupole consists of two dipoles placed end to end with their negative charges (say) overlapping; that is, in the center is −2Q flanked (on a line) by a +Q to either side (Fig. 21–74). Determine the electric field
E
→
at points along the perpendicular bisector and show that E decreases as 1/r4. Measure r from the −2Q charge and assume r≫ ℓ.
60 O In Fig. 21-43, six charged particles surround particle 7 at ra
dial distances of either d = 1.0 cm or 2d, as drawn. The charges are
q1 = +2e,92 = +4e, q3 = +e,q4= +4e,q5 = +2e,q6 = +8e,q7 = +6e
with e = 1.60 x 10-19C. What is the magnitude of the net electro
static force on particle 7?
Figure 21-43 Problem 60.
4.
6 In Fig. 22-27, two identical circu-
lar nonconducting rings are centered
on the same line with their planes
perpendicular to the line. Each ring
has charge that is uniformly distrib-
uted along its circumference. The
rings each produce electric fields at points along the line. For three
situations, the charges on rings A and B are, respectively, (1) qo and
9o, (2) -90 and -90, and (3) - and qo. Rank the situations
according to the magnitude of the net electric field at (a) point P1
midway between the rings, (b) point P, at the center of ring B, and
(c) point P3 to the right of ring B. greatest first.
P,
P3
Ring A
Ring B
Figure 22-27 Question 6.
(c)
Calculate the electric field, E, at the origin for the three scenarios given. The magnitude
4760
of all charges is 3 C and the charges form squares with each side 1-m long. k =
8.99 x 10°Nm²/C².
=
Chapter 21 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.