Physics Electrostatics Level: University
PotentialFind the potential at point P for the rectangular grouping of charges (q1 =-8.54 uC q2 = 11.9 uC q3 = 8.54 uC L1= 0.150m and L2 = 0.363m) as below.
Question Diagram
Physics Electrostatics Level: University
Coulomb's LawA charge Q exarts a 12 N force on another charge q. If the distance between the charge is doubled what is the magnitude of the force exerted on Q by q?
(a) 3 N
(b) 6 N
(c) 24 N
(d) 36 N
(e) 48 N
Physics Electrostatics Level: University
Coulomb's LawA -4.0 uC charge is located 0.30 m to left of a +6.0 uC charge. What is the magnitude and direction of the electrostatic force on the positive charge?
(a) 2.4 N to the right
(b) 2.4 N to the left
(c) 4.8 N to the right
(d)4.8 N to the left
(e) 7.2 N to the right
Physics Electrostatics Level: University
CoulombThree charge particles A,B and C are located near one another. Both the magnitude and direction of the force that particle A exerts on particle B is independent of
(a) The sign of charge B
(b) The sign of charge A
(c) The distance between C and B.
(d) The distance between A and B
(e) The magnitude of the charge B.
Physics Electrostatics Level: University
Induction Of ChargeIA charged conductor is brought near an uncharged insulator. Which one of the following statements is true?
(a) Both objects will repel each other.
(b) Both objects will attract each other.
(c) Neither object exerts an electrical force on each other.
(d) The objects will repel each other only if the conductor has a negative charge.
(e) The objects will attract each other only of the conductor has a positive charge.
Physics Electrostatics Level: University
CapacitanceA parallel plate capacitor has plates of an area of area . 0066m squared and a separation of .45mm. (a) Find the magnityde of the charge on each plate when the capacitor is connected to a 12-V battery. (b) Will your answer to part (a) increase decrease or stay the same if the separation between the plates is increased explain. (c) Calculate the magnitude of the charge on the plates if the separation is 90 mm.
Physics Electrostatics Level: University
PotentialConside a region in space where a uniform electric field E = 7500 n/c points in the negative x direction. (a) What is the orientation of the equipotential surfaces (b) if you move in the positive x direction does the electric potential increase or decrease. explain. (c) What is the distance between the + 14 - v and the + 16 - v equipotentials.
Physics Electrostatics Level: University
PotentialA square of a side a has charges + Q at each corner. What is the electric potential energy of this system of charges.
Physics Electrostatics Level: University
Potential(a) In the previous problem find the point to the left of the negative charge where the electric potential vanishes. (b) Is the electric field at the point found in part (a) positive, negative, or zero explain.
Physics Electrostatics Level: University
PotentialPoint chargess +4.1 uC and -2.2uC are placed on the x axis at (11m,0) and (-11,0) respectively. (a) sketch the electric potential on the x axis for this system. (b) your sketch should show on epoint on the x axis between the two charges where the potential vanishes. Is the point closer to the + 4.1uC charge or closer to the -2.2uC explain. (c) find the point refered to in part b
Physics Electrostatics Level: University
Electric field intensityA positive charge of 2*10^-6 coul experiences a force of 06 newton when placed at a point in an electric field. The strength of the field at that point in newton/ coul is?
Physics Electrostatics Level: University
PotentialHow much work is required move an electron through a potential difference of 200 volts in an electric field?
Physics Electrostatics Level: University
Coulomb's lawQ1 and Q2 represent to 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: University
Coulomb's LawTwo protons are places 1.0 cm apart and released from rest. What is the magnitude and initial acceleration of either proton?
Physics Electrostatics Level: University
Coulomb,s LawWhat is the force between two dust paricles each of which collected about 10^8 electrons. This distance between the particles is about 10 microns. The charge of one electron is q=1.6 10^(-19) C, 1 micron = 10^(-6) meters.
