Question

2a)Suppose 1.6 × 10²⁰ electrons move through a pocket calculator during a full day’s operation.How many coulombs of charge move through it?

2b)To start a car engine, the car battery moves 3.6 × 10²¹ electrons through the starter motor.How many coulombs of charge are moved?

2cTwo point charges exert a 3.5 N force on each other.What will the force become in N if the distance between them is increased by a factor of three?

Answer 1