What is the change in energy of the capacitor

Assignment Help Physics

Reference no: EM13311978

A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 270 V and disconnected from the source. The capacitor is then immersed in distilled water. Assume that distilled water is an insulator.

(a) What is the charge on the plates before immersion? pC What is the charge on the plates after immersion?

(b) What is the capacitance after immersion? pF What is the potential difference after immersion?

U = Uwater - Uair = (nJ)

Reference no: EM13311978

Questions Cloud

Write a project specification - fire alarm system : Write a project specification for project - fire alarm system and the specification must cover the cost, timescales

What is the change in the mass of the nuclear fuel : A nuclear power reactor generates 2.80 109 W of power. In one year, what is the change in the mass of the nuclear fuel

Find the coursework requirements : Each staff member can borrow up to 17 books, a postgraduate student 10 and undergraduate student 6. The limit for a member of the public is 6 books.

How many miles would the car go on a single tablet : Suppose one gallon of gasoline produces 1.1 108 J of energy, and this energy is sufficient to operate a car for 16 miles. how many miles would the car go on a single tablet

What is the change in energy of the capacitor : A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. What is the change in energy of the capacitor

How fast did he need to drive for a doppler shift this large : A college student who was late for his physics class drove through a red traffic light, How fast did he need to drive for a Doppler shift this large

Find expressions for the magnitude and direction : The electric potential in a region is V=-Vo(r/R), Find expressions for the magnitude and direction of the electric field in this region

Find the speed with which the pebble strikes the ground : A slingshot fires a pebble from the top of a building at a speed of 14.0 m/s. The building is 28.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground

What is the mechanism of diversity in translation : Most viral infections induce activation of the eIF2a kinase PKR which halts protein translation in an infected cell. Which of the following mechanism enable viruses to evade the antiviral effects of PKR

User Account

All Pages