Actually, I have 3 questions to solve. I know the 1st one requires Coulomb's constant, but I just can't get the formula to work. Ditto for the formulas for the other 2 questions.
1) A 6.3 μC point charge and a −1.7 μC point charge are separated by a distance of 0.00023 m. What is the electric potential energy of this system?
2) A charged particle moving at a speed of 175 m/s due east, through a magnetic field of 5.00 mT pointing straight up toward the sky, experiences a force of 4.25 μN directed due north. What is the charge on the particle? Be sure to indicate the sign.
3) A wire etched onto a computer chip carries a current of 0.000000041 A. In 1.8 milliseconds, how many electrons flow past a point on the wire?
1 answer
I finally got #3!