8) Three identical point charges (Q=+3uC) are arranged in an equilateral triangle as shown. What is the magnitude and direction of the net electric force on the charge at the origin? a) 8N at 30 degrees b) 8N at 210 degrees b) 14N at 30 degrees d) 14N at 210 degrees 9) How many electrons are moving through a current of 2A for 2 s? a)3.2x10 b)6.28x10 )4 d)25x10% 10) How much electrical energy is generated by 100 W light bulb turned on for five minutes? a) 20 b) 500 c)3000 d) 15,000 e) 30,000