you have a parallel-plate capacitor a.) determine the electric field between the plates if there is...

you have a parallel-plate capacitor

a.) determine the electric field between the plates if there is a 120 V potential dofference across the plated and they are separated by 0.5 cm

b.) A spark will jump if the magnitude of the electrix field between the plates exceeds 3.0x10^6 V/m when air separates the plates. what is the closest the plated can be place to esch ither without sparking

c.) if a dialectric (k=2.5) is inserted between the plates how will that affect the answers to a.) and b.) explain

need help with C

Expert Solution

The concept used is electric field in between the parallel plate capacitor , after placing the dielectric in between the plate then the electric filed gets reduced by the factor k , and then potential also reduces by the factor k , earlier the maximum separation without spark is more means above that distance there will be no spark occur , but now distance changes after dielectric inserted.

kindly upvote my answer , if you like by clicking on the like button.

genius_generous answered 1 year ago

1) A parallel plate capacitor is connected to a battery. The electric field between the plates...

1) A parallel plate capacitor is connected to a battery. The electric field between the plates is E. While still connected to the battery, we move the plates so that their plate separation is now twice as large. What is the electric field between the plates now? E/4. E. E/2. 4E. 2E. 2) A parallel plate capacitor with capacitance Co is fully charged. The plates are in the shape of a disk. If the diameter of the disk is doubled...

a parallel-plate capacitor is oriented horizontally and charged so that there is an electric field of...

a parallel-plate capacitor is oriented horizontally and charged so that there is an electric field of 50,000 V/m pointing up inside the gap of 1cm, which is filled with air. a.) With the charge on each plate remaining constant, the capacitor is immersed half-way in an oil of dielectric constant K=2.5 What is now the potential difference between the plates? b.) If on top of the oil, water (K=80) is poured to completely fill the upper part of the gap,...

A physicist builds a parallel-plate capacitor with adjustable spacing between the plates. When the plates are...

A physicist builds a parallel-plate capacitor with adjustable spacing between the plates. When the plates are at their initial separation, the capacitance is 7.00 µF. (a) At this capacitance, the capacitor is connected to a 18.00 V battery. After fully charging, how much energy (in µJ) is stored in the capacitor? (b) The battery is then disconnected. Without discharging the capacitor, the physicist then doubles the separation between the plates. At this point, how much energy (in µJ) is stored...

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 dielectric slab is slowly inserted between the plates of a parallel plate capacitor while the...

A dielectric slab is slowly inserted between the plates of a parallel plate capacitor while the capacitor is connected to a battery. As it is being inserted:

Assume we have a parallel-plate capacitor. (1) If we increase the distance between the plates, what...

Assume we have a parallel-plate capacitor. (1) If we increase the distance between the plates, what will happen to its capacity? (2) If we increase the surface area of the plates, what will happen to its capacity? (Hint: How do you calculate the capacity of a capacitor?)

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)

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...

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 vacuum capacitor has 7.22J of energy stored in it. The separation between the plates...

A parallel-plate vacuum capacitor has 7.22J of energy stored in it. The separation between the plates is 2.70mm . If the separation is decreased to 1.85mm , a) what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed? b) What is the energy now stored if the capacitor remained connected to the potential source while the separation of the plates was changed?

Question