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A 1.2 UF capacitor charges to 3 kV. Calculate the energy stored in the capacitor. Five identical capacitors of capacity Co= 2 UF are connected in a bridge circuit as indicated in the figure. What is the equivalent capacity between points a and b? Seleccione una: ( a). =3.4 J Seleccione una: ( b). = 2.4 J " a). = 8 PF " C). = 6.4 J " b). = 4 HF ( d). = 5.4 J " c). = 7 PF e). = 12.4 J 'd). = 1 HF ( e). = 3 UF The three charged particles in the figure are at the vertices of an isosceles triangle. Calculate the electric potential at the midpoint of the base, if q=7 UC Calculate the magnitude of the electric field at a point P that is 30 cm to the right of a point charge Q= -3x10 C Seleccione una: Seleccione una: " a). = - 10x10 V 407 " a). = 3x10 N/C 30 cm- " b). = - 1x10 V " b). = 3x10 N/C " c). = +11x10 V ( c). = 5x10s N/C 4.00 cm d). = - 15x10 V d). = 4x10s N/C Q= -3.0 x 10-6C e). = - 11x10 V " e). = 2x10s N/C 2.00 cm Three charged particles are placed at the corners of an equilateral triangle of side 1.20 m (figure). The charges are 7 UC, -8.0 UC, and -6 UC. Calculate the magnitude of the net force on Q1. 21=+7.0 AC Seleccione una: ( a). = 0,33 N " b). = 0,13 N 1.20 m 1.20 m " c). = 0,53 N 'd). = 0,23 N 1.20 m e). = 0,43 N 2=-8.0 HC 23=-6.0 HC