5. I a. Which point in FIGURE EX26.5, A or B, has a larger electric potential? b. What is the potential difference between A and B? A 3 cm E = 1000 V/m B. FIGURE EX26.5 7 cm7. | What are the magnitude and direction of the electric field at the dot in FIGURE EX26.7? 1 cm 1 cm 1 cm 200 V 1 cm 200 V 459 - - OV OV -X -200 V FIGURE EX26.7 FIGURE EX26.823. | You need to construct a 100 pF capacitor for a science project. You plan to cut two L X L metal squares and insert small spacers between their corners. The thinnest spacers you have are 0.20 mm thick. What is the proper value of L?33. II A 2.0-cm-diameter parallel-plate capacitor with a spacing of 0.50 mm is charged to 200 V. What are (a) the total energy stored in the electric field and (b) the energy density?27. | What is the equivalent capacitance of the three capacitors in FIGURE EX26.27? 10 UF + + 20 AF 13 LF 30 AF 20 uF 10 ALF FIGURE EX26.27 FIGURE EX26.28