A parallel-plate air capacitor is made by using two plates 16 cm square , spaced 3.1...

A parallel-plate air capacitor is made by using two plates 16 cm square , spaced 3.1 mm apart. It is connected to a 12-V Battery

(a) What is the capacitance?

Answer is 73 pF

(b) What is the charge on each plate?

Answer is 880 pC

Answer is 3900 V/M

(d) What is the energy stored in the capacitor?

Answer is 5.3 nJ

(e) The battery is disconnected and then the plates are pulled apart to a separation of 7.4 mm. What is the capacitance in this case?

(f) What is the charge on each plate in this case?

(g) What is the electric field between the plates in this case?

(h) What is the energy stored in the capacitor?

Please answer (e), (f), (g), & (h)

Solutions

Expert Solution

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

A parallel-plate capacitor made of circular plates of radius 65 cm separated by 0.30 cm is...

A parallel-plate capacitor made of circular plates of radius 65 cm separated by 0.30 cm is charged to a potential difference of 800 Volts by a battery. Then a sheet of mylar is pushed between the plates, completely filling the gap between them. How much additional charge flows from the battery to one of the plates when the mylar is inserted?

Two 2.50 cm × 2.50 cm plates that form a parallel-plate capacitor are charged to ±...

Two 2.50 cm × 2.50 cm plates that form a parallel-plate capacitor are charged to ± 0.708 nC . Part A What is the electric field strength inside the capacitor if the spacing between the plates is 1.50 mm ? Part C What is the electric field strength inside the capacitor if the spacing between the plates is 3.00 mm ?

A parallel-plate capacitor is made from two plates 15.0 cm on each side and 4.65 mm...

A parallel-plate capacitor is made from two plates 15.0 cm on each side and 4.65 mm apart. Half of the space between these plates contains only air, but the other half is filled with Plexiglas of dielectric constant 3.25. An 19.5 V battery is connected across the plates. 1. What is the capacitance of this combination? C=____F 2. How much energy is stored in the capacitor? U=____J 3. If we remove the Plexiglas, but change nothing else, how much energy...

A parallel plate capacitor consisting of square plates is charged. One edge of the plates is...

A parallel plate capacitor consisting of square plates is charged. One edge of the plates is 0.4 (m). When the current is 5 (A), the rate of change of the electric field between the plates is approximately how many V / (m.s). Eo = 8.85x10-12 (SI)

An air-filled parallel-plate capacitor has plates of area 2.50 cm separated by 1.00 mm. The capacitor...

An air-filled parallel-plate capacitor has plates of area 2.50 cm2 separated by 1.00 mm. The capacitor is connected to a 24.0-V battery. (a) Find the value of its capacitance._______ pF (b) What is the charge on the capacitor? _______ pC (c) What is the magnitude of the uniform electric field between the plates? _______ V/m

The plates of an air-filled parallel-plate capacitor with a plate area of 15.0 cm2 and a...

The plates of an air-filled parallel-plate capacitor with a plate area of 15.0 cm2 and a separation of 8.95 mm are charged to a 170-V potential difference. After the plates are disconnected from the source, a porcelain dielectric with κ = 6.5 is inserted between the plates of the capacitor. (a) What is the charge on the capacitor before and after the dielectric is inserted? Qi = C Qf = C (b) What is the capacitance of the capacitor after...

An air-filled parallel-plate capacitor has plates of area 2.40 cm^2 separated by 3.00 mm. The capacitor...

An air-filled parallel-plate capacitor has plates of area 2.40 cm^2 separated by 3.00 mm. The capacitor is connected to a(n) 23.0 V battery. (a) Find the value of its capacitance. pF (b) What is the charge on the capacitor? pC (c) What is the magnitude of the uniform electric field between the plates? N/C

A parallel plate air capacitor with no dielectric between the plates is connected to a constant...

A parallel plate air capacitor with no dielectric between the plates is connected to a constant voltage source. How would the capacitance and the charge change if a dielectric of dielectric constant K=2 is inserted between the plates. C0 and Q0 are the capacitance and charge of the capacitor before the introduction of the dielectric.

A parallel plate capacitor is composed of two parallel plates of aluminium foil, each with a...

A parallel plate capacitor is composed of two parallel plates of aluminium foil, each with a surface area of 2.5 m2 that are separated by 2.0 mm The foils are then oppositely charged with 5 mC of charge. a) what is the electric field between and outside of the capacitor near its middle ? b) If a dust particle (m = 0.5 ng) picks up 10,000 electrons and finds itself right near the negatively charge plate, what is its KE...

A parallel-plate capacitor has plates of area 0.15 m2 and a separation of 1.00 cm. A...

A parallel-plate capacitor has plates of area 0.15 m2 and a separation of 1.00 cm. A battery charges the plates to a potential difference of 100 V and is then disconnected. A dielectric slab of thickness 4 mm and dielectric constant 4.8 is then placed symmetrically between the plates. (a) What is the capacitance before the slab is inserted? pF (b) What is the capacitance with the slab in place? pF (c) What is the free charge q before the...

Subjects