A van de Graff generator is a machine that can put large quantities of charge on the metal globe at the top of its surface. Assume that it has attained a charge of +5.2 x 106C. a) Calculate the strength of the electric field at a distance of 40 cm from the center of the globe. b) Aspeckofdustwithachargeof-2.5x10-12Cmovesintothepositioninparta). i. Calculate the magnitude of the force on the dust speck. ii. Determine the direction of the force on the dust speck.

A van de Graff generator is a machine that can put large quantities of charge on the metal globe at the top of its surface. Assume that it has attained a charge of +5.2 x 106C. a) Calculate the strength of the electric field at a distance of 40 cm from the center of the globe. b) Aspeckofdustwithachargeof-2.5x10-12Cmovesintothepositioninparta). i. Calculate the magnitude of the force on the dust speck. ii. Determine the direction of the force on the dust speck.