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- calculate the force experienced by the proton due to the electric field.
- calculate the work done by multiplying force by distance.
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- To form a hydrogen atom, a proton is fixed at a point and an electron is brought from far away to a distance of 0.5291010 in, the average distance between proton and electron in a hydrogen atom. How much work is done?A hydrogen atom consists of an electron and a proton. Model the hydrogen atom as a dipole with separation d = 1010 m. a. Estimate the electric potential energy of the hydrogen atom. b. How much work does an external force do in liberating the electron from the atom? c. If the external force does more than the work you found in part (b), what can you say about the electrons motion when it is very far from the proton?• Part A Electrostatic cleaners remove small dust particles and pollen grains from air by first lonizing them, then towing the air between the plates of a paralel plate capacitor, paralel to the plates, where electric forces deposit charged particies on one of the electrodes. A typical polien grain has a mass of 5.0 x 10". the lonizer charges it with 650 extra electrons, and a fan moves the air at 4.5 m/s Ignore air resistance and gravity. How long does it take a pollen grain to pass behween 12 cm x 12 cm electrodes? Express your answer with the appropriate units. At Value Units Submit Previous Anawers Request Answer Part B What menmum electric feid strength is needed to deflect the grain by 3.0 mm before t leaves the eiectrodes? Express your answer with the appropriate units. E. Value Units
- 8200 N/C is directed along the +x-axis as shown. An electric field of strength E = A proton is initially at rest at point A. • C E • A • B What is the magnitude of the force on the proton due to the electric field? Submit Answer Tries 0/2 What is the magnitude of the acceleration of the proton? m/s² Submit Answer Tries 0/2 What is the work done by the electric field on the proton after it has moved a distance of 6 cm from point A to point B? Submit Answer Tries 0/2 What is the kinetic energy of the proton at this instant? Submit Answer Tries 0/2 What is the speed (magnitude of the velocity) of the proton at this instant? m/s• A charge q = +2.8x10-7 C point charge is placed at position A. Find the work that is done on the point charge by the electric force when it is moved: 1) From A to B. 2) From A to C W(A->B) x 10-5 J W(A->C) x 10-5 J +150.0 V +250.0 V +350.0 V C B D +650.0 V +550.0 V +450.0 V $2.0 cm• A • B Choose true or false for each statement below about the uniform electric field shown above. Point C is at a higher potential than point A 8The kinetic energy of a negative charge moved from point A to point C will decrease. 0The electrostatic force on a charge is greater at point B than at point A 0The potential energy of a positive charge moved from point B to point A will increase. The plate on the right is positively charged
- • C E • A • B An electric field of strength E = 1600 N/C is directed along the +x-axis as shown. An electron is initially at rest at point B. %3D Electron Charge = -1.6x10 19 C %3D What is the work done by the electric field on the electron after it has moved a distance of 10 cm from point B to point A? O160 J 02.6 x10-17 J -2.6 x10-17 J -160 J Submit Answer Tries 0/2 What is the work done by the electric field on the electron after it has moved a distance of 10 cm from point A to point B? O160 J 2.6 x10-17 J -2.6 x10-17 J O-160 JSuppose an electron is placed in space. • How much does the electric potential change as you move from ro = 1nm to r = 2nm? • How much work would it take to move a second electron from ro to r?What is the potential V (z) due to the ring on the z axis as a function of z? A ring with radius R and a uniformly distributed total charge Q lies in the xy plane, centered at the origin (Figure 1) Express your answer in terms of Q, z, R, and en or k 1. • View Available Hint(s) V (2) = What is the magnitude of the electric field E on the z axis as a function of z, for z > 0? 1 Express your answer in terms of some or all of the quantities Q, z, R, and eg or k • View Available Hint(s) TË (2) =
- A metal sphere with radius ra = 1.20 cm is supported on an insulating stand at the center of a hollow, metal, spherical shell with radius r, = 9.30 cm. Charge +q is put on the inner sphere and charge -q on the outer spherical shell. The magnitude of q is chosen to make the potential difference between the spheres 440 V, with the inner sphere at higher potential.View- 1012 10 13- 10-13. Plate Charges Electric Field Lines Meters- Сарacitance Plate Charge Stored Energy Disconnect Battery |Voltmeter Capacitance Plate Charge (top) Stored Energy O Electric Field Detecto 0.71x10-12 F 4.01x1013 c 1.13x10-13 J Reset A Separation 5.0 mm 0.565 V 1.5 V Plate Area 400.0 mm? OV -1.5 V O-lo-•6 When an electron moves from Electric A to B along an electric field line in field line Fig. 24-34, the electric field does 3.94 x 10-19 J of work on it. What are the electric potential differences B) (a) VB - VA, (b) Vc - VA, and (c) Vc - VB?