Two plates separated by a distance d = 14.3 mm are charged to a potential difference V = 7.25 V. A constant force F = 6.81 N pushes a -8.30 mC charge from the positively charged plate to the negatively charged plate. Calculate the change in the kinetic energy AK, potential energy AU, and total energy AE of the charge as it travels from one plate to the other. Assume the initial speed of the charge is 0. AK = AU = AE= J J J T I I I I I I I I I T T I V. d F + + + + + + + + + + + +

The potential difference between two parallel plates is 598 V. An alpha particle with mass of 6.64×10-27 kg and charge of 3.20×10-19 C is released from rest near the positive plate.  a) What is the speed of the alpha particle when it reaches the other plate? The distance between the plates is 36.2 cm.

A student is trying to build a home-made capacitor. He uses two 1.0 cm x 1.0 cm aluminum foil as the two parallel conducting plates, spaced 0.40 cm apart. He then connects the two foils with a 3.0 V battery. How many electrons are stored in the negative plate?

A particle with charge 1.60 x 10-19 C enters midway between two charged plates, one positive and the other negative. The initial velocity of the particle is parallel to the plates and along the midline between them (see figure below). A potential difference of 500.0 V is maintained between the two charged plates. If the lengths of the plates are 10.0 cm and they are separated by 2.00 cm, find the greatest initial velocity for which the particle will not be able to exit the region between the plates. The mass of the particle is 21.0 x 10-24 kg. (Enter the magnitude.) m/s 10.0 cm m 2.00 cm Need Help? Read It

2. Two point charges, +400 uC and -2.00 uC are 0.55m apart. (a) what is the potential energy of the pair? (b) If the positive charge is fixed and the other is released from rest, how far from each other should the charges be if the negative charge is moving with a speed of 2.30 x 10^2 m/ s? Let the mass of the moving charge be 8.00 x 10^-6 kg.

A 5.70 x 10^-16 kg oil drop accelerates upward at a rate of 2.90 m/s^2 when placed between two horizontal, parallel plates that are 3.50 cm apart. If the potential difference between the plates is 7.92 x 10^2 V, what is the magnitude of the charge on the oil drop?

Two large aluminum plates are separated by a distance of 2.0 cm and are held at a potential difference of 195 V. An electron enters the region between them at a speed of 3.2 × 105 m/s by passing through a small hole in the negative plate and continues moving toward the positive plate. Assume the electric field between the plates is uniform. 1. What is the electron’s speed, in meters per second, when it is 0.1 cm from the negative plate?  2. What is the electron’s speed, in meters per second, when it is 0.5 cm from the negative plate?  3. What is the electron’s speed, in meters per second, when it is 1.0 cm from the negative plate?  4. What is the electron’s speed, in meters per second, when it is 1.5 cm from the negative plate?  5. What is the electron’s speed immediately before it strikes the positive plate?

An electron has an initial speed of 3.0 × 106 m/s. What potential difference is required to bring the electron to a stop?

Oppositely charged parallel plates are separated by 3.95 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? N/C (b) What is the magnitude of the force on an electron between the plates? N (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.18 mm from the positive plate? Need Help? Master It

A spec of dust with a static charge of +2 Coulombs is in between the plates of a parallel plate negatively charged plate. The electric field in the capacitor is meter. How much work would capacitor, where it rests on the 2200 Volts/meter, and the separation between the plates is 0.01 be done in moving the spec from the negative plate to the positive plate? O 4.4 V O 6.6V 2.2 V O -1.9 V O none of these