The magnitude of the electric field due to a small charged object is 36 N/C at a distance of 2.0 m from the charge.

The field 6.0 m away from the charge is

At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 248 N/C. At a distance r2 from the charge, the field has a magnitude of 132 N/C. Find the ratio r2/r1.

At a distance r from a point charge, the electric potential is 2400V and the magnitude of the electric field is 2.0 x 10^5 V/m.

1. What is the distance r?

2. What is the electric potential at distance r/2 from thecharge?

3. What is the magnitude of the electric field at a distance r/2from the charge?

The electric field due to a certain point charge has a magnitude E at a distance of 1.50cm from the charge. What will be the magnitude of this field (in terms of E) if we move 2.00cm farther away from the charge?