What is the magnitude of the electric field of a proton at a distance of 10 micrometers? Remember, the charge on a proton is 1.6e-19 C. (This is given on your formula sheet.) (in units of N/C)
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- 1) An object is found to have -3.6 x10-6 C of charge on it. How many electrons we added (positive answer) or removed (negative answer) from the object? 2) A charge of -0.7x10-6C is placed at x = 0m. A second charge of 2x10-6C is placed at x = 0.22m. What is the electric field (size and direction) at x=0.050m?What is the electric charge of 0.44 of a mole (NA = 6.023 × 1023) of alpha particles (ionized helium ions, He²+)? Express your answer in kilocoulombs, rounded to one decimal place.The figure below shows electric field generated by two charges q₁ and q2. What is most likely combination of 92 91 a) q1 = -3μC, q2= -12 μC b) q₁ = +6 μC, q2= +12 µC c) 9₁ = +2 μC, 92= -9 μC d) q1 = -8 μC, q2= +24 MC None of the answer choices is correct. Write your own 91 and 92?
- A charge of -0.7x10-6C is placed at x = 0m. A second charge of 2x10-6C is placed at x = 0.22m. What is the electric field (size and direction) at x=0.050m?It turns out that there is an electric field that points inward towards the center of the earth that has a magnitude of 100 N/C near the Earth's surface. Estimate the total charge of the earth needed to support such a field. Where do you think all this charge comes from?Give an expression for the electric field strength ?E at a point in terms of the charge ?q and distance ?r from the charge to that point. Use ?k for 14??014πε0 (i.e. ?≡14??0k≡14πε0). Use the following notation (without the quotes): "/" for division, "*" for multiplication, "+" an "-" as usual. For powers used "^2", while for square root use "sqrt". To indicate that square root applies to the whole expression use brackets - for example, for ??‾‾‾‾√AB use sqrt(A*B). For Greek letters such as ?π, ?α etc. use pi, alpha. For example to get 1??2???‾‾‾‾√1πA2BAB use 1/pi*A^2/B*sqrt(AB). Please use the exact variables given in the conditions of the problem: e.g if ?L is given, then do not use ?l.