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[DOC File]1 - Department of Physics
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(Electric Field) a.8.0 cm b.-44 cm c.-69 cm d. -38 cm. Q1 has 50 electric field lines radiating outward and Q2 has 100 field lines converging inward. What is the ratio Q1/Q2? (Electric Field Lines) a. 2 b. -2 c. 1/2 d. -1/2. The electric field associated with a uniformly charged hollow metallic sphere is the greatest at: (Conductors in ...
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The electric field around the needle is much larger than the field around the body of the airplane and can become large enough to produce dielectric breakdown of the air, discharging the airplane. To model this process, assume two charged spherical conductors are connected by a long conducting wire and a 1.20-(C charge is placed on the combination.
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[DOC File]Practice Problems: Coulomb’s Law and Electric Field Strength
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Example: A Van de Graaff generator has a potential difference of 3,250,000 V. It exerts 1.95 N of force on a balloon in its electric field. The balloon has a charge of 0.475 (C. What is the strength of the electric field around the generator? How far was the balloon moved? When the balloon was 15 cm from the generator, the force between them ...
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[DOC File]Chapter 21
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Jul 12, 2012 · The electric field between the plates would be directed downward, as shown below: The net force acting on the moving charge is the sum of the electric and magnetic forces, and is called the Lorentz force: ... The Electric Generator. The principle of electromagnetic induction is the basis for a generator. A generator converts mechanical energy ...
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[DOC File]Electrostatics worksheet
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An electric field has an electric field strength 6000. N/C at a distance of 1.5 m. What is the strength of the field at a distance of 6.0 m? 24. An alpha (α) particle is stationary in an electric field such that the gravitational force acting on it is equal to the electrostatic force.
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[DOC File]TAP 408-3: Non-uniform electric fields
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2) The electric field strength field at a distance of 1.0 ( 10-10 m from an isolated proton is 1.44(1011 N C–1 and the electrical potential is 14.4 V. a) Calculate the electric field strength at a distance of 2.0 ( 10-10 m from the proton. b) Calculate the electrical potential at a distance of 2.0 ( 10-10 m from the proton.
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[DOC File]Countertorque and Power of an Electric Generator
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The Back Emf Generated by an Electric Motor. The heart of any electric motor is a shaft connected to a coil that is suspended in a magnetic field (usually the magnetic field of a permanent magnet built into the motor). When current passes through the coil, the magnetic field exerts a torque on the coil, causing it and the shaft to spin.
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[DOC File]TAP408-0: Field strength, potential energy and potential
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2) The electric field strength field at a distance of 1.0 ( 10-10 m from an isolated proton is 1.44(1011 N C–1 and the electrical potential is 14.4 V. a) Calculate the electric field strength at a distance of 2.0 ( 10-10 m from the proton. b) Calculate the electrical potential at a distance of 2.0 ( 10-10 m from the proton.
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Electric field generator