Find the expression of potential at point 'p' due to the charges charges in the d q a q

Repeat previous exercise for a positive charge.

Repeat previous exercise for a negative charge.

Consider the equal and opposite charges shown below. (a) Show that at all points on the x-axis for which |x|a,EQal20x3. (b) Show that at all points on they-axis for which |y|a,EQal0y3.

A certain lightning bolt moves 40.0 C of charge. How many fundamental units of charge is this?

Small pieces of tissue are attracted to a charged comb. Soon after stirlrinp to the comb, the pieces of tissue are frorn it. Explain.

Discuss how potential difference and electric field strength are related. Give an example.

A particle of charge +q and mass m moves with velocity v0 pointed In the +y-direction as It crosses the x-axis at x= R at a particular time. There is a negative charge -Q fixed at the origin, and there exists a uniform magnetic field B0 pointed in the +z-direction. It is found that the particle describes a circle of radius R about -Q. Find B0 in terms of the given quantities.

Would defining the charge on an electron to be positive have any effect on Coulomb's law?

To stat a car engine, the car battery moves 3.751021 electrons through the staffer motor. How many coulombs of charge were moved?