here,
5)
cross sectional area , A = 3 * 10^-4 m^2
potential difference between the plates , V = 50 V
charge , Q = 5 nC = 5 * 10^-9 C
a)
let the sepration between plates be d
capacitance , C = Q/V = area * e0 /d
5 * 10^-9 /50 = 3 * 10^-4 * 8.85 * 10^-12 /d
solving for d
d = 2.66 * 10^-5 m
b)
the energy stored , E = 0.5 * Q * V
E = 0.5 * (5 * 10^-9 ) * ( 50) J
E = 1.25 * 10^-7 J
c)
let the speed at positive plate be v
using work energy theorm
work done by potential = kinetic energy gained
V * e = 0.5 * m * ( v^2 - 0)
50 * 1.6 * 10^-19 = 0.5 * 9.1 * 10^-31 * v^2
solving for v
v = 4.2 * 10^6 m/s
Problem 5 When an empty parallel-plate capacitor with a cross sectional area of 3x10m2 is connected...
A parallel plate capacitor is constructed with plate area of 0.80 m2 and a plate separation of 0.10 mm. When it is charged to a potential difference of 12 V, the charge stored on it is = micro C. A parallel plate capacitor is constructed with plate area of 0.40 m2 and a plate separation of 0.10 mm. When it is charged to a potential difference of 12 V, the charge stored on it is= micro C. A parallel-plate capacitor...
A parallel-plate capacitor has plates of area 400 cm2 and is connected across the terminals of a battery. After some time has passed, the capacitor is disconnected from the battery. When the plates are then moved 0.40 cm farther apart, the charge on each plate remains constant but the potential difference between the plates increases by 100 V. (a) What is the magnitude of the charge on each plate? (5) Determine the change in stored energy in the capacitor due...
A parallel-plate capacitor with area 0.100 m2 and plate separation of 2.00 mm is connected to a 9.00-V battery. (a) What is the capacitance? (b) How much charge is stored on the plates? (c) What is the electric field between the plates? (d) Find the magnitude of the charge density on each plate. (e) Without disconnecting the battery, the plates are moved farther apart. Qualitatively, what happens to each of the previous answers?
A parallel-plate capacitor with area 0.320 m2 and plate separation of 2.00 mm is connected to a 5.80-V battery. a.) What is the capacitance? b.) How much charge is stored on the plates? c.) What is the electric field between the plates? d.) Find the magnitude of the charge density on each plate. e.) Without disconnecting the battery, the plates are moved farther apart. Qualitatively, what happens to each of the previous answers?
A parallel-plate capacitor with plate area 4.60 cm2 and air-gap separation 0.78 mm is connected to a 12.00 V battery, and fully charged. The battery is then disconnected. (a) What is the charge on the capacitor? (b) The plates are now pulled to a separation of 0.98 mm. What is the charge on the capacitor now? (c) What is the potential difference across the plates now? (d) How much work was required to pull the plates to their new separation?...
6. A parallel-plate capacitor has plates of area 500 cm2 and is connected across the terminals of a battery. After some time has passed, the capacitor is disconnected from the battery. When the plates are then moved 0.50 cm farther apart, the charge on each plate remains constant but the potential difference between the plates increases by 100 V. (a) What is the magnitude of the charge on each plate? (b) Determine the change in stored energy in the capacitor...
A parallel plate capacitor is constructed with plate area of 0.40 m2 and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 12 V? A parallel-plate capacitor is filled with air, and the plates are separated by 0.050 mm. If the capacitance is 17.3 pF, what is the plate area? A parallel plate capacitor is constructed with plate area of 0.0010 m2 and a plate separation of...
i need help with this page??? 1. (8 points total) A parallel plate capacitor whose plates have area A and plate separation d is connected to a battery. While the capacitor remiains connected to the battery, describe quantitatively what will happen to the charge on the capacitor if each if the following actions occur. That is, explain numerically how the magnitude of the charge on the capacitor in each circumstance compares to the original a. (3 pts) The distance between...
A parallel plate capacitor of plate area A square meters is connected to a 10-volt battery. The plates are moved apart with constant speed v0, while still connected to the 10-volt battery. Find the instantaneous rate of change of potential energy stored in a capacitor when the plates are x meters apart.
A parallel-plate capacitor with area 0.600 m2 and plate separation of 4.00 mm is connected to a 9.00 V battery. (a) What is the capacitance? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. F (b) How much charge is stored on the plates? (c) What is the electric field between the plates? N/C (d) Find the magnitude of the charge density on each plate. C/m2 (e) Without disconnecting the...