39. Trent and Nicole are exploring methods of producing electrostatic charges in their physics lab. Trent brings a negatively charged plastic rod (very close, but not touching) to a neutral metal sphere that sits on a wooden table. While Trent holds the plastic rod close to the sphere, Nicole places her hand onto the sphere then removes it. Trent then moves the rod away from the sphere. Which statement describes what has occurred with the sphore? A. The sphere was charged by induction and has a negative charge. B. The sphere was charged by induction and has a positive charge. C. The sphere was charged by conduction and has a negative charge. D. The sphere was

Q: 6. Which one of the following statements concerning the electric dipole moment is false? A. The…

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Q: A parallel plate capacitor is made from two metal plates of area 0.1 m? and separated by an…

A: The answer  for given questions  are given below here we use gauss law to find the electric  field…

Q: 231 Does the electric potential increase or decrease as we move towards a negative charge? Explain.…

A: Page 1

Q: 2. A demonstration Van de Graaff generator has a 30.0-cm-diameter metal sphere that produces a…

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Q: n the region shown, the elctric field has a strength of 200.0 N/C.  A -1 nC charge is placed at rest…

A: We will answer the question using relations connecting electric field and potential difference in…

Q: Part 1: The image shows the two plates of a capacitor. An electron is released from rest at point…

A: we know that force between charged   plate of capacitor is F= Q2 / 2Aε0      Where Q= charge on…

Q: Select the correct expression to describe the electromotive force - e.m.f. Select one or more: O a.…

A: Electromotive force is defined as the work done per unit charge i.e  Emf=Work donecharge Unit of…

Q: 12. Within a thundercloud, and between the ground and the thundercloud, electric fields arise. The…

A: Given-   cloud- +vecharged ground- −ve charged- d=1.5km=1.5×103m E=3.1kVm=3.1×103Vm

Q: 5A. What voltage will accelerate electrons to a speed of 6.70×10-7 m/s?   B.Find the radius of…

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Q: Two negative charges are at rest. Each has a charge of -0.03 C and a mass of 3.4 x 10-6 kg.    a. If…

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Q: A charge +Qis placed on a conducting ring of radius a. A charge -q is placed at a point that is on…

A: Given data The charge placed on the conducting ring is +Q. The radius of the ring is a. A charge…

Q: wo students are exploring electric charge using two negatively charged foam plates. They remove…

A: Energy of interaction between plates depends upon the magnitude of charge. It is directly…

Q: Static electricity (outside of climate controlled buildings) is more prevalent in winter months than…

A: Static electricity is a stationary electric charge, typically produced by friction, which causes…

Q: 3. A 3.2 µC charge is placed so that it is 0.3 m above a -4.5 μC charge. (a) What is the magnitude…

A: 3.2microC charge and -4.5microC charge is , at a distance r = 0.3m

Q: 1. An eletrostatic paint sprayer consists of a charged metal sphere. Charged paint droplets (the…

A: Given: The diameter of the sphere is, d=0.2 m. The electric potential of the sphere is, V=20 kV. To…

Q: 2. a. Draw a force vector at A for a positive test charge. b. Draw a force vector at point B for a…

A: (a). If the charge at A is positive then, As the relation between force and potential is, V=-F×dq…

Q: 30. A ball hangs from a thread between two vertical capacitor plates. Initially the ball is neutral.…

A: Initial charge on ball = 0  ( as the ball us initially charge)  The right plate of capacitor becomes…

Q: Two parallel plate capacitors have circular plates. The magnitude of the charge on these plates is…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.