Physics Electrostatics Level: Misc Level
how much work is required to move an electron through a potential difference of 200 volts in an electric field?
Physics Electrostatics Level: Misc Level
Q 1 and Q2 represent teo point charges originally a distance R (not) apart. If the charge Q1 is tripled while charge Q2 is halved, how far apart would they now have to be in order to have the same force between them as in the original situation?
Physics Electrostatics Level: Misc Level
two protons are placed 1.0 cm apart and released from rest. What is the magnitude and initial acceleration of either proton?
Physics Electrostatics Level: Misc Level
A raindrop inside a thundercloud has a charge-8e. What is electric on the raindrop if the electric field at its location (due to other charges in the cloud) has magnitude of 2.0 x 106 N/C and is directed up?
Physics Electrostatics Level: Misc Level
Power lines have a limit on the maximum size of the electric field they produce. In most states a maximum of 5 kN/C at about 20 m from the wires is allowed. This is quite large compared to the Earth,s fair-weather electric field of about 100 N/C. Assume that the charge on the wire is static (not true, but a simplification here) and use the formula for the electric field of a wire to determine how much charge per unit length is on the wire.
Physics Electrostatics Level: Misc Level
A solid sphere of charge of radius R has a total charge of q uniformly spread throughout the sphere. (a) Find the magnitude of the electric field for>=R. (b)Find the magnitude of the electric field for r<=R. (c) Sketch a graoh of E (r) for 0<=r<=3 R.
Physics Electrostatics Level: Misc Level
In fair weather,over flat ground, there is a downward electric field of about 150 N/C.(a) Assume that Earth is a conducting sphere with charge on its surface. If the electric field just outside is 150 N/C radially inward,calculate the total above the Earth,s surface, the field is only 120 N/C. Calculate the charge density (charge per unit volume) of the air (assumed constant).
Physics Electrostatics Level: Misc Level
Two point charges, q1=+20.0 nC and q2=+10.0 nC are located on the x- axis at x=0 and x=1.0 m, respectively. Where on the x-axis is the electric field equal to zero?
Physics Electrostatics Level: Misc Level
A small sphere with a charge of -6.0 x 10^-7 Cis placed in a uniform electric field of magnitude 1.2 x 106 N/C pointing to the west. What is the magnitude and direction of the force on the sphere due to the electric field?
Physics Electrostatics Level: Misc Level
AK+ and a CI-ion are directly across from each other on opposite sides of a membrane 9.0 nm thick. What is the electric force on the K+ due to the CI -ion? lgnore the presence of other charges.
Physics Electrostatics Level: Misc Level
Three point charges are fixed in place in a right triangle. One charge of -0.60 uC at location(0,0)on an X-Y axis. The second charge of +0.80 uC at location (0,8) on an X-Y axis. The third charge of +1.0 uC at (6,0) on an X-Y axis. What is the electric force on the -0.60 uC charge due to the other two charges.
Physics Electrostatics Level: Misc Level
Suppose a 1.0-g nugget of pure gold has zero net charge.What would be its net charge after it has 1.0% of its electrons removed?
Physics Electrostatics Level: Misc Level
What is the capacitance of a capacitor constructed from 2 rolls of aluminum foil cach with dimensions of 1.0 by 20 yd., seperated by wax paper of the same area. Assume the thickness of the paper to be .125 mm, and k=3.5
Physics Electrostatics Level: Misc Level
A particle having a charge q=3x10^-5 C moves from point a to b, a total linear distance of .5 meter.If the mass of the charge is 5x10^-5 kg and the electric field is uniform and in the direction of a to b E=200 N/C what is the increase in energy in eV?in Joules?How fast is the particle going at point b?
Physics Electrostatics Level: Misc Level
What is the capacitance of a capacitor constructed from 2 rolls of aluminum foil each with dimensions of 1.0 by 20 yd,,sperated by wax paper of the same area. Assume the thickness of the paper to be. 125 mm , and k=3.5
