A particle has a charge of -3 nC. (a) Find the magnitude and direction of the electric field due to this particle at a point 0.250 m directly above it. (b) At what distance from the particle does its electric field have a magnitude of 12 N/C
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A particle has a charge of -3 nC. (a) Find the magnitude and direction of the electric field due to this particle at a point 0.250 m directly above it. (b) At what distance from the particle does its electric field have a magnitude of 12 N/C?
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- Problem 8: The electric force experienced by a -4.8 μC charge at some point P has a magnitude of 18 N and points due North. Part (a) What is the magnitude of the electric field, in newtons per coulomb, at P? Part (b) What is the direction of the electric field at point P? Part (c) What is the magnitude of the force, in newtons, that an electron would experience if it were placed at point P instead of the given charged particle? Part (d) If a proton were placed at point P instead of the electron, what is the magnitude of the force, in newtons, that it would experience? Part (e) What is the ratio of the magnitude of the acceleration of an electron to that of a proton, when the electric field acting on each has the same strength?The cockroach Periplaneta americana can detect a static electric field of magnitude 6.00 kN/C using their long antennae. If the excess static charge on a cockroach is modeled as point charges located at the end of each antenna, what magnitude of charge q would each antenna possess in order for each antennae to experience a force of magnitude 5.50 µN from the external electric field? Calculate q in units of nanocoulombs (nC). q= nCReview Conceptual Example 11 before attempting to work this problem. Four charges with equal magnitudes of 9.88 × 10-¹2 Care placed at the corners of a rectangle. The lengths of the sides of the rectangles are 3.20 cm and 4.56 cm. Find the magnitude of the electric field at the center of the rectangle in Figures a and b. (a) Number i (b) Number i +9 +9 1 (a) Units Units 2, E24 3 +9 E13 E C (b) E24 +q
- What is the magnitude and direction of the force exerted on a 3.50 μC charge by a 250 N/C electric field that points due east?Near its surface, the earth has an electric field that points straight down and has a magnitude of about 150 N/C. Estimate the charge that you would have to place on a basketball so that the electric force on the ball would balance its weight.What should be the direction and magnitude of the vertical electric field that will balance the weight of a plastic sphere with the charge Q= +1.5 nC and mass m= 1.8 g? 3.2 x 10^5 N/C positive y-direction 1.2 x 10^6 N/C in +y-direction 1.2 x 10^6 N/C in negative y-direction 3.2 x 10^5 N/C in negative y-direction
- Charge Q acts as a point charge to create an electric field . Its strength measured from a distance of 30.0 cm away is 40.0 N/C. What is the magnitude of the electric field strength that you would expect to be measured at a distance of 45.0 cm away?The cockroach Periplaneta americana can detect a static electric field of magnitude 9.00 kN/C using their long antennae. If the excess static charge on a cockroach is modeled as point charges located at the end of each antenna, what magnitude of charge q would each antenna possess in order for each antennae to experience a force of magnitude 4.50 µN from the external electric field? Calculate q in units of nanocoulombs (nC). q = nC