CH3 CQ

• Some region of space contains uniform electric field directed towards south with magnitude 100 V/m. At point A electric potential is 400 V. What is electric potential at point B which is 2 meters directly towards the south from A?

  200 V
• When electron moves in the direction which is against direction of electric field, we can conclude that:

  Its energy decreases
• Two charges, having charge +Q and -Q are separated by distance d. What are electric field and potential created by these two charges exactly at midpoint between them?

  Electric field is not 0, but the potential is 0
• Two charges, having charge +Q and +Q are separated by distance d. What are the net electric field and potential created by these two charges exactly at midpoint between them?

  Electric Field is 0, but potential is not 0
• A particle A of mass m and charge +q is shot with initial velocity v from infinity towards the fixed positive charge Q. It comes to momentarily stop at distance d from Q. Particle B of the same mass m and charge + q is shot towards Q with initial velocity 2v. At what distance from Q it will come to stop in terms of d?

  d/4