Magnitude of Electric Field
A charged ball of mass m and charge Q is hung from a mass less pendulum. A uniform electric field along the horizontal causes the pendulum to swing up an angle . Find the magnitude of the electric field.
Related Problems
Two objects, whose charges are +3 nC and -2 nC, are separated by 1.0 mm. Find the magnitude of the attractive force that either charge exerts on the other.
In the figure below, L = 1.0 mm, q = +3 nC, q = -2 nC, and q is +4 nC. Find the magnitude and direction of the net electrostatic force on q
A proton ( 1.6 x 10 C ) is placed 2.19 x 10 m from point A. Find the electric field at point A. Imagine a proton is put at point A. Find the force that acts on the proton.
A +12 nC charge is distributed uniformly along the y-axis from y = 0 to y = 4.0 m. What is the x-competent of the electric field at x = 2.0 m on the x-axis? (this type of problem may not be covered in algebra based physics courses)