Two small nonconducting spheres have a total charge of 90.0 μC. (a) When placed 1.06 m apart, the force each exerts on the otheris 12.0 N and is repulsive. 1) What is the charge on each? a) smaller charge is.........Coulombs b) larger .........Coulombs II) What if the force were attractive? c) smaller...........Coulombs d) larger............Coulombs
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- 3) A-9.0-uC charge is placed 12.4 cm from a charge q, the force between the two charges is 840 N. What is the value of q?Three charges on a ring Three particles of equal mass m are placed on a ring of radius R. Two of the particles have charge q and the third has a charge Q. (a) Find the equilibrium configuration of the charges for general q and Q. Be sure to consider both qQ> 0 and qQ <0. (You will find an equation that relates the angles between the particles and their charges. This equation can't be solved in general, however comment on special cases and check various limits.) (b) Solve the equation from part (a) for q = Q. For this case, consider small pertur- bations of the charges around their equilibrium positions. Find the frequencies and eigenmodes. Ignore friction.24. (a) Two point charges totaling 8.00µC exert a repulsive force of 0.150 N on one another when separated by 0.500 m. What is the charge on each? (b) What is the charge on each if the force is attractive?
- Suppose we have two positively charged particles a distance of 4 m apart from each other. Particle 1 has a charge of 6C and particle 2 has a charge of 1.3 x 10^3 C. What amount of electrostatic force exists between these two particles? A)435 x 10^12N B)1.75 x 10^13 N C)6.5 x 10^2 N (aka 650 N)3) a)What are the magnitude and direction of the force exerted on a 4.41 pC charge by a 184 N/C electric field that points due east? magnitude direction ---Select- v b) You charge a piece of aluminum foil (mass =7.46 g) by touching it to a charged rod. The charged rod gives the aluminum foil a charge of 13 µC. Your professor brings a charged plate over and tells you to put the aluminum foil on top of the plate. To your surprise the aluminum foil hovers motionless in the air above it! Calculate the value of the electric field from the charged plate (assume it is a uniform field and the aluminum foil is a point charge). magnitude N/C direction -Select-- vCommon transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece's weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a 16.3 mg piece of tape held 0.64 cm above another. (The magnitude of this charge is consistent with what is typical of static electricity.) (C)
- P105. In below figure, a small, non-conductor ball of mass m =3.0 mg and charge q = 9.0 µC hangs from an insulating thread that makes an angle e charged non- conductor plane. Considering the gravitational force on the ball and assuming the plane extends far vertically and into and out of the page, calculate the area charge density of the plane. Length of string is 120.0 cm. 30° with a vertical, uniformly lo120cm + JploneWhat is the magnitude of force F⃗ → on a -2.3 nC charge placed at the midpoint?
- Question= Two small spheres spaced 20.0 cmcm apart have equal charge. 1. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 5.78×10−21 NN? Express your answer as number of electrons.9:09 docs.google.com 4. Applying Conservation of Charge: A researcher is analyzing a particle decay process. The data for one experiment shows a particle of charge -3e, decaying to form two new particles. One of the new particles has a charge of - e. -3e Choose -1 e +3 e n -2 e +2 e e with the correct words in the following Conservation of Charge Review: a) Charge is neither created nor destroyed, it can only be (siphoned/ transferred added) from one 10 points Q? -e * 25 points