4014

Physics Electrostatics Level: University

Capacitor
Find voltage across and charge on each capacitor for circuits below.

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3972

Physics Electrostatics Level: University

Electric Field
Two charge parallel plates create a uniform electric field of 3 N/C between the plates. The left plate is positive and the right plate is negative. Sev been identified in this region and are labelled in the figure.
Which of the following statements are true about the static electrical properties ( E field potential etc) of the case depicted in the figure above?
(Give ALL correct answer B. AC. BCD.... or None)
(a) The electric field at N is zero
(b) An electron placed at M would feel a greater magnitude of electric force as compared to a proton at M
(c) The potential difference between P and M is non-zero
(d) Equipotential surfaces form planes that are perpendicular to the plates.
(e) The electric field at P is equal to the electric field at N                                                                                                                                                                                                                                

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3971

Physics Electrostatics Level: University

Potential
An electron from starts rest 70.6 cm from a fixed point charge with Q = -0.146uC. How fast will the electron be moving when it is very far away?

3976

Physics Misc Topic Level: University

Q point is refered to in my text book as derived from the word quiescent which means still or unvarying. Its on the graph of a  diode with ac current It also goes on to say in my text with no applied varying signal the point of operation would be the Q-point determined by the applied dc levels. Jerome

3892

Physics Electrostatics Level: University

Coulomb
Three 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.

3880

Physics Electrostatics Level: University

Potential
Conside 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.

3879

Physics Electrostatics Level: University

Potential
A square of a side a has charges + Q at each corner. What is the electric potential energy of this system of charges.

3830

Physics Electrostatics Level: University

Coulomb's law
Q1 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?

3759

Physics Electrostatics Level: University

Coulombs Law
Three point charges are fixed in place in a right triangle. One charge of -0.60 micro C at location (0 0 ) on an X -Y axis. The second charge of +0.80 Micro C at location ( 0 8 ) on an X - Y axis. The third charge of + 1.0 Micro C at ( 6  0 ) on an      X - Y axis. What is the  electric force on the  - 0.60 Micro C charge due to the other  two charges.

3756

Physics Electrostatics Level: University

Capacitor
If a capacitor has 3.77uC of charge on it and an electric field of 1.82 kV/mm is desired if they are separated by 4.21 mm of air what must each plates area be?