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- What is a proton? Where does it normally exist in an atom, and what is its charge?Four point charges are placed at corners of a square . At the top left is a charge of - 1 C, at the top right is a charge of - 2 C, at the bottom right is a charge of -3 Cand at the bottom left is a charge of - 4 C. What is the direction of the net electric force due to the four point charges on a positive charge Q located at the center of square ? O due North O due South O Sw O SEA negative charge of -0.0005 C exerts an attractive force of 9.0 N on a second charge that is 10 m. away. What is the magnitude of the second charge?
- b. A piece of pencil lead is connected in series with an ammeter and a power supply. The power supply is turned on. After a few minutes, although the potential difference across the pencil lead does not change, the current in the circuit increases significantly. Explain why the current increases. c. Electric fields are caused by both point charges and by parallel plates with a potential difference across them. Describe the difference between the electric field caused by a point charge and the electric field between parallel plates. Your answer should include a diagram of each type of field and reference to electric field strength. Question 2The electric force between two point charges with a magnitude of 500nC and 700nC is 15 N. How far apart the two charges from each other in centimeters?Identify the statement from the following when the inductance can have high value. a. All the given options O b. If the number of turns of the wire is more O c. If the length of the wire is longer O d. If the cross-sectional area is less
- 4- If electrons in an electron beam have a kinetic energy of K, and the magnitude of the electric field that stops them is E, what is the distance they take before they stop? O A RieE O y KIE KleE D) E) KeE3. A particle with a charge of 8nC is 4m away from a charge of 10C. What is the electric potential energy?8. Two point charges are located at two corners of a rectangle, as shown in the figure below. What is the electric potential at point A? What is the potential difference between points A and B? 3.00 μC 0.250 m B -1.00 µC 0.500 m
- A) Use coulomb's law to determine the force of attraction between the two chargesB) As shown, the two charges are 3 cm apart. What will happen to this force if the distance between the charges is doubled?C) As shown, the two charges are 3 cm apart. What will happen to this force if the distance between the charges is doubled and -4? MuC is cut in half?this is the ability of a material to conduct electricity a. impedane b. conductance c. reactance d. capacitanceWhich factor is squared in Coulomb's law equation * The charges Distance O Force The constant