I Review Two pairs of charges are shown in (Figure 1). Part A At which point or points is the electric field zero in (Figure 1)(a)? Enter the number or numbers of the points, separated by commas if there are more than one. Enter 0 if there are no points where the field is zero. nν ΑΣφ Figure < 1 of 1 Submit Previous Answers Request Answer Part B At which point or points is the electric field zero in (Figure 1)(b)? (a) 1 Enter the number or numbers of the points, separated by commas if there are more than one. Enter 0 if there are no points where the field is zero. 10 (b) 1 3 6. 7 8 9 10

A long cylinder of copper of radius 3 cm is charged so that it has a uniform charge per unit length on its surface of 3 C/m. (a) Find the electric field inside and outside the cylinder. (b) Draw electric field lines in a plane perpendicular to the rod.

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A sold sphere 20 cm in radus carries 14 pC, dibuted unity throughout ts volume. Find the electric field strength 10 cm from the show's Express your answer using two significant figures AZ O B₁- Submit Part B Subm Bequent Find the field angh 20 cm from the spe Express your answer using two significant figures. Part C AL A Fedtd amergh ces to the s Express your newer using two signant ? At ? MN/C MN/C MN/C

Express answer/s in mks (SI) . Draw diagram whenever necessary the cut part was coordinate origin

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Beview I Conatacts Part A Aplatypus foraging for prey can detect an electric feld as smal as0.002 N/C. To give an idea of sensitivity of the platypus's electric sense, how tar from a10 nC point charge does the feld have this magnitude? Express your answer with the appropriate units HẢ r- 167.4 FOILA What is the strength of the electric field at the position indicated by the dot in (Elgure 1)7 Express your answer in newtons per coulomb. E- 9.67• 10-3 N/C Submit Previous Answers Beauest Answer figure 1 of 1> X Incorrect; Try Again; 4 attempts remaining 1.0 nC Part B 5.0 cm What is the direction of the electric field at the position indicated by the dot in the figure? Specity the direction as an angle above the horizontal line Express your answer in degrees. 5.0 cm 5.0 cm -1.0 nC Pearson

vo An electron at point A as shown in the figure has a speed th - 2.2 x 10° m/s. The distance between points A and Bis given as / 8 cm. kg and ge C, respectively.) 31 19 (Mass and charge of the electron are m, = 9.109 x 10 = 1.602 x 10 B) Find the time, in units.of nanoseconds required for the electron to move from A to B. Answer: