Physics Electrostatics Level: University
ChargeWhen adhesive tape is pulled from a dispenser the detached tape acquires a positive charge and the reaming tape in the dispenser acquires a negative charge. If the tape pulled from the dispenser has.14uC of charge per centimeter what length of tape must be be pulled to transfer 1.8 x 10 to the 13th pwr electrons to the reaming tape
Physics Electrostatics Level: University
CapacitorFind the equivalent capacitance between points A and B for the three capacitors in parallel in the following?
Question Diagram
Physics Electrostatics Level: University
Energy of capacitorWhat capacitance should a capacitor have if it is to store 3 x 10 - 3 joules of energy when connected to a 12 volt battery?
Physics Electrostatics Level: University
CapacitanceAn electrical capacitor of 1.5 micro-farands is connected to a 6 volt battery. How much potential energy is stored in the capacitor?
Physics Electrostatics Level: University
What is the capacitance of a capacitor constructed from 2 rolls of aluminum foil each with dimensions of 1.0 by 20yd. Seperated by wax paper of the same area. Assume the thickness of the paper to be. 125 mm and k = 3.5 I need these problems within in 15 hours contact me asap and let me know if this is possible.
Physics Electrostatics Level: University
Find the ratio of Fe/Fg(f sub e and f sub g) of the electric force and the gravitational force exerted by the proton on the electron.
Physics Electrostatics Level: University
A particle having a charge q = 3x 10^-5C moves from point a to b a total liner distance of .5 meter. If the mass of the charge is 5 x 10^-5 kg and the electric field is uniform and in the direction of a to b E = 200N/C what is the increase in energy in eV? In Joules? How fast is the particle going at point b?
Physics Electrostatics Level: University
A spherical balloon with a 6 cm radius has charge distributed over its surface. At a distance of 50 cm from the center of the balloon the electric field strenth is 7.2 x 10^4 N/Ca. What is the magnitude of the charge on the balloon
b. What is the electric field strength 3 cm from the center of the ballon
c. What is the electric field strength 18 cm from the center of the ballon.
d. What is the electric potential inside the balloon.
e. What is the electric potential 18 cm from the center of the balloon?
Physics Electrostatics Level: University
A total charge of 100micro C is distributer uniformly throughout a spherical region of space with a radius of 20.0 cm. Find the electric field strenght at (a) r = 10 cm from the center of the sphere (b) r = 30cm from center of sphere (c) What is the volume charge density?
Physics Electrostatics Level: University
A uniform electric field of 2 x 10^5 N/C parallel to the positive z axis fills all of space compute the electric flux through a rectangle of 4.8m^2 if the rectangle is placed (a) in the xyplane (b) in the yz plane (c) the plane makes an angle of 30 degrees with the y axis of the origin.
Physics Electrostatics Level: University
A rod 80 cm long is charged with a charge density of 40 micro C/m. A charge of 20 micro C is placed 80 cm from the midpoint of the rod and along a line perpendicular to it. Calculate the electric field at a point midway between the point charge and the center of the rod.
Physics Electrostatics Level: University
The effective area of each of each plate of a parallel plate capacitor is 2.4m^2. The capacitor is filled with neoprene rubber( k = 6.4). When a 3.0V potential difference exists across the plates of the capacitor the capacitor stores 5.0uC of charge. Determine the plate separation of the capacitor.a. 7.2 x 10 ^ - 5 m
b. 3.0 x 10 ^ - 4 m
c. 1.7 x 10 ^ - 4 m
d. 5.3 x 10 ^ - 4 m
e. 8.2 x 10 ^ - 5 m
Physics Electrostatics Level: University
The magnitude of the charge on the plates of an isolated parallel plate capacitor is doubled. Which one of the following statements is true concerning the capacitance of this parallel-plate system?
a. The capacitance is decreased to one half of its original value.
b. The capacitance is increased to twice it original value.
c. The capacitance remain unchanged
d. The capacitance depends the electric field between the plates.
e. The capacitance depends on the potential difference across the plates
Physics Electrostatics Level: University
Which one of the following statements concerning electrostatic situations is false?a. E is zero everywhere inside a conductor
b. Equipotential surfaces are always perpendicular to E
c.It takes zero work to move a charge along an equipotential surface
d. If V is constant throughout a region of space then E must be zero in that region
e. No force component acts along the path of a charge as it moved along the equipotential surface.
Physics Electrostatics Level: University
If an electron which has a charge of 1.60 X 10^-19 C is moved from rest at A to rest at B what is the change in electric potential energy of the electron?a. +4.3 X 10^-15J
b. +5.4 X 10^-15J
c. -2.1 X 10^-14J
d. -3.2 X 10^-14J
e. zero joules
