(II) Three charged particles are placed at the corners of an equilateral triangle of side 1.20 m (Fig. 16-53). The charges are +4.0 µC, -8.0 µC, and -6.0 µC. Calculate the magnitude and direction of the net force on each due to the other two. Q1 =+4.0 µC 1.20 m FIGURE 16-53 Q2 =-8.0 µC Q3= -6.0 µC Problem 17. 1.20 m 1.20 m

Problem 3: (II) Three positive particles of equal charge, +17.0 μC, are located at the corners of an equilateral triangle of side 15.0 cm (Fig. 16-53). Calculate the magnitude and direction of the net force on each particle due to the other two. FIGURE 16-53 +17.0 μC 15.0 cm 15.0 cm Problem 12. +17.0 με 15.0 cm +17.0 μС

i) A particle of mass 2.66×10-26 Kg travels at a speed of 5.0x106 m/s perpendicular to a field of flux density 1.20 T, which deflects it to move in a circular arc of radius 0.231-m. What positive charge is on the particle? (b) What is the ratio of this charge to the charge of an electron?

A 1.0C charge and a 2.0C charge are separated by 100m. Where should a charge -(1.0x10^-3) C° be located on a line between the positive charges so that the net electrical force on the negative charge is zero?