24. Electric Force & Field; Gauss' Law
Coulomb's Law (Electric Force)
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- Multiple Choice
If the force between two charges is F when the distance is d, what will the force between the two charges be if they were moved to a distance of 2d?
2526views50rank3comments - Multiple Choice
In which direction will the −1 C charge move? If it has a mass of 10 g, what will its initial acceleration be?
1688views53rank9comments - Multiple Choice
What is the direction of the net force on the charge at the center of the square in the following figure?
2226views14rank6comments - Multiple ChoiceWhat is the distance between a charge and a charge if the magnitude of the force between them is ?441views
- Textbook QuestionThree point charges are arranged along the x-axis. Charge q1 = +3.00 mC is at the origin, and charge q2 = -5.00 mC is at x = 0.200 m. Charge q3 = -8.00 mC. Where is q3 located if the net force on q1 is 7.00 N in the -x-direction?2032views
- Textbook QuestionThree point charges are arranged on a line. Charge q3 = +5.00 nC and is at the origin. Charge q2 = -3.00 nC and is at x = +4.00 cm. Charge q1 is at x = +2.00 cm. What is q1 (magnitude and sign) if the net force on q3 is zero?2194views
- Textbook Question
Just How Strong Is the Electric Force? Suppose you had two small boxes, each containing 1.0 g of protons. (a) If one were placed on the moon by an astronaut and the other were left on the earth, and if they were connected by a very light (and very long!) string, what would be the tension in the string? Express your answer in newtons and in pounds. Do you need to take into account the gravitational forces of the earth and moon on the protons? Why? (b) What gravitational force would each box of protons exert on the other box?
573views - Textbook QuestionTwo small plastic spheres are given positive electric charges. When they are 15.0 cm apart, the repulsive force between them has magnitude 0.220 N. What is the charge on each sphere (b) if one sphere has four times the charge of the other?2624views