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3. How many excess electrons must be placed on each of two small spheres spaced 3cm apart if the spheres are to have equal charge and if the force of repulsion between them is to be 10-19N?

3. How many excess electrons must be placed on each of two small spheres spaced 3cm apart if the spheres are to have equal charge and if the force of repulsion between them is to be 10-19N?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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How many excess electrons must be placed on each of two small spheres spaced 3cm apart if the speheres are to have equal charge and if the force of repulsion between them is to be 10^-19N?
1. Two charges are located on the positive x-axis of a coordinate system. Charge q, 2 x 10- C is 2cm from the origin, and charge q2 =-3 x 10-9C is 4cm from the origin. What is the total force exerted by these two charges on a charge q3 = 5 x 10-C located at the origin? 2. A negative charge of -0.50 x 10-C exents a repulsive force of magnitude 0.20 N on an unknown charge 0.20 m away. What is the unknown charge (magnitude and sign)? 3. How many excess electrons must be placed on each of two small spheres spaced 3cm apart if the spheres are to have equal charge and if the force of repulsion between them is to be 10-1"N? 4. What is the electric field 30cm from a charge q = 4 x 10-°C? 5. The electric field caused by a certain point charge has a magnitude of 5.0 x 10 at a distance 0.10m from the charge. What is the magnitude of the charge? 6. Two particles having charges q = 1.00 x 10-1C and q = 2.00 x 10- C are separated by a distance 2.00m. At what point is the total electric field due to the two charges equal to zero? 7. Create an illustration of the electric field lines of q, 1C between q2 and qa both having a charge od-2C. 8. A uniform electric field E = 8000 passing through a flat surface with an area of A = 10m2. Determine %3D the flux if: a.) the electric field direction and the line perpendicular to the surface is pointing in the same direction. b.) the electric field direction and the line perpendicular to the surface is perpendicular. c.) the angle is 45°.
Transcribed Image Text:1. Two charges are located on the positive x-axis of a coordinate system. Charge q, 2 x 10- C is 2cm from the origin, and charge q2 =-3 x 10-9C is 4cm from the origin. What is the total force exerted by these two charges on a charge q3 = 5 x 10-C located at the origin? 2. A negative charge of -0.50 x 10-C exents a repulsive force of magnitude 0.20 N on an unknown charge 0.20 m away. What is the unknown charge (magnitude and sign)? 3. How many excess electrons must be placed on each of two small spheres spaced 3cm apart if the spheres are to have equal charge and if the force of repulsion between them is to be 10-1"N? 4. What is the electric field 30cm from a charge q = 4 x 10-°C? 5. The electric field caused by a certain point charge has a magnitude of 5.0 x 10 at a distance 0.10m from the charge. What is the magnitude of the charge? 6. Two particles having charges q = 1.00 x 10-1C and q = 2.00 x 10- C are separated by a distance 2.00m. At what point is the total electric field due to the two charges equal to zero? 7. Create an illustration of the electric field lines of q, 1C between q2 and qa both having a charge od-2C. 8. A uniform electric field E = 8000 passing through a flat surface with an area of A = 10m2. Determine %3D the flux if: a.) the electric field direction and the line perpendicular to the surface is pointing in the same direction. b.) the electric field direction and the line perpendicular to the surface is perpendicular. c.) the angle is 45°.
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