In Fig. 22-24, two particles of charge − q are arranged symmetrically about the y axis; each produces an electric field at point P on that axis, (a) Are the magnitudes of the fields at P equal? (b) Is each electric field directed toward or away from the charge producing it? (c) Is the magnitude of the net electric field at P equal to the sum of the magnitudes E of the two field vectors (is it equal to 2 E )? (d) Do the x components of those two field vectors add or cancel? (e) Do their y components add or cancel? (f) Is the direction of the net field at P that of the canceling components or the adding components? (g) What is the direction of the net field? Figure 22-24 Question 3.
In Fig. 22-24, two particles of charge − q are arranged symmetrically about the y axis; each produces an electric field at point P on that axis, (a) Are the magnitudes of the fields at P equal? (b) Is each electric field directed toward or away from the charge producing it? (c) Is the magnitude of the net electric field at P equal to the sum of the magnitudes E of the two field vectors (is it equal to 2 E )? (d) Do the x components of those two field vectors add or cancel? (e) Do their y components add or cancel? (f) Is the direction of the net field at P that of the canceling components or the adding components? (g) What is the direction of the net field? Figure 22-24 Question 3.
In Fig. 22-24, two particles of charge −q are arranged symmetrically about the y axis; each produces an electric field at point P on that axis, (a) Are the magnitudes of the fields at P equal? (b) Is each electric field directed toward or away from the charge producing it? (c) Is the magnitude of the net electric field at P equal to the sum of the magnitudes E of the two field vectors (is it equal to 2E)? (d) Do the x components of those two field vectors add or cancel? (e) Do their y components add or cancel? (f) Is the direction of the net field at P that of the canceling components or the adding components? (g) What is the direction of the net field?
A non-conducting sphere of radius R = 7.0 cm carries a charge Q = 4.0 mC distributed uniformly throughout its volume. At what distance, measured from the center of the sphere, does the electric field reach a value equal to half its maximum value?
At what distance along the central axis of a uniformly charged plastic disk of radius R = 1.31 m is the magnitude of the electric field equal to 1/3 times the magnitude of the field at the center of the surface of the disk?
A DROP OF CHARGED OIL WITH RADIUS R = 2.76 μm AND DENSITY ρ=920 Kg/m^3 IS KEPT IN EQUILIBRIUMUNDER THE COMBINED INFLUENCE OF ITS WEIGHT AND A UNIFORM ELECTRIC FIELD DIRECTED VERTICALLY DOWNWARDS AND OF MAGNITUDE E =1.65x10^6 N/C. CALCULATE THE MAGNITUDE AND SIGN OF THE CHARGE ON THE DROP IN TERMS OF THE CHARGE OF THE ELECTRON
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