A DROP OF CHARGED OIL WITH RADIUS R = 2.76 μm AND DENSITY ρ=920 Kg/m^3 IS KEPT IN EQUILIBRIUM UNDER 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

A DROP OF CHARGED OIL WITH RADIUS R = 2.76 μm AND DENSITY ρ=920 Kg/m^3 IS KEPT IN EQUILIBRIUM UNDER 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

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter6: Gauss's Law

Section: Chapter Questions

Problem 55P: The electric field 10.0 cm from the surface of a copper ball of radius 5.0 cm is directed toward the...

See similar textbooks

Similar questions

Charge is uniformly distributed around a ring of radius R = 2.40 cm, and the resulting electric field magnitude E is measured along the ring’s central axis (perpendicular to the plane of the ring). At what distance from the ring’s center is E maximum?
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?
A positive charge q = 7.81 μC is spread uniformly along a thin nonconducting rod of lengthL = 15.4 cm. What are the (a) magnitude and (b) direction (relative to the positive directionof the x axis) of the electric field produced at point P, at distance R = 6.00 cm from the rod along itsperpendicular bisector?
What must the charge (sign and magnitude) of a particle of mass 1.40 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 690 N/C?
What is the magnitude of the electric field produced at the distance of 1.00m by an infinite line of charge of linear charge density equal to 2.34*10^-5 C?
A bowling ball of regulation diameter (22.0 cm) hasn’t yet been drilled for finger holes and is charged throughout its volume. If the charge is spread uniformly and has a total value of positive 15.0.0 C, how strong is the electric field (a) 0 cm and (b) 33.0 cm from the ball’s center?
In the figure a sphere, of radius a = 13.2 cm and charge q = 6.00×10-6 C uniformly distributed throughout its volume, is concentric with a spherical conducting shell of inner radius b = 37.0 cm and outer radius c = 39.0 cm . This shell has a net charge of -q. Find expressions for the electric field, as a function of the radius r, within the sphere and the shell (r< a). Evaluate for r=6.6 cm. Find expressions for the electric field as a function of the radius r, between the sphere and the shell (a< r <b). Evaluate for r=25.1 cm. Find expressions for the electric field as a function of the radius r, inside the shell (b< r <c). Evaluate for r=38.0 cm
A rod 50 cm long and 1.0 cm in radius carries a 2.0@mC charge distributed uniformly over its length. Find the approximate mag-nitude of the electric field (a) 4.0 mm from the rod surface, not near either end, and (b) 23 m from the rod.
The square conducting sheet −2≤ x ≤2,−2≤ y ≤2,z=0 plane has a charge density12|y|mC/m2. Determine the total charge on the plate and the electric field intensity at(0,0,10)
A uniform electric field of magnitude 25.6 N/C is parallel to the x axis. A circular loop of radius 16.7 cm is centered at the origin with the normal to the loop pointing 52.9* above the x axis. To what angle, in degrees from the positive x axis, should the normal of the loop be rotated so that the flux through the loop becomes 0.314 N - m-/C?
A spherical Conductor of radius 0.330 m has a spherical cavity of radius 0.120m at its center. The conductor carries a total charge of -6.00 nC; in addition, at the center of the spherical cavity is a point charge of +4.00 nC. Find (a) the total charge on the surface of the cavity, (b) the total charge on the outer surface of the condutor, (c) the magnitude of the electric field just inside te surface of the cavity, and The answers were wrong on the previous attempts, the answers should be (a) +4.00 nC (b) -4.00 nC (c) 2.5*10^3 N/C I need to know how those answers are solved
A very large conducting plate lying in the xy plane carries a charge per unit area of 3σ. A second such plate located at z = 3.00 cm and oriented parallel to the xy plane carries a charge per unit area of −6σ. Find the electric field for the following. (Take upward to be in the positive z-direction.) (a) z < 0 (b) 0 < z < 3.00 cm (c) z > 3.00 cm