How much work did in halving the distance between plates

Assignment Help Electrical Engineering
Reference no: EM13248266

A parallel-plate capacitor is charged to a potential V0, charge Q0 and then disconnected from the battery. The separation of the plates is then halved. What happens to
(a) the charge on the plates?
(b) the electric field?
(c) the energy stored in the electric field?
(d) the potential?
(e) How much work did you do in halving the distance between the plates?

Reference no: EM13248266

Questions Cloud

Find the magnetic force exerted on a wire : Can anyone please help me figure out this question, thanks in advance. What is the magnetic force exerted on a 2.85 m length of wire carrying a current of 0.595 A
What will be the speed if the motor current is 10a : The motor resistance is 0.5ohm and the magnetic circuit may be assumed unsaturated. What will be the speed if: (i) the load torque is increased by 44%, (ii) the motor current is 10A
Describe the importance of a project kick-off meeting : Describe the importance of a project kick-off meeting, and what needs to be reviewed in that meeting.
Find the resultant acceleration of the object : A 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley
How much work did in halving the distance between plates : A parallel-plate capacitor is charged to a potential V0, charge Q0 and then disconnected from the battery. The separation of the plates is then halved. What happens to (a) the charge on the plates
What are the conection between business and law : what are the conection between business and law from the standpoint of our economic system which is capitalized?
Calculate lost torque-opper loss and efficiency : A 100V dc series motor has an armature resistance of 0.2 ohm and field resistance of 0.25 ohm. The motor runs at a speed of 600 rev/min when the shaft torque is 27.14 Nm. Friction and windage losses at this speed are 300W.
Determine the total core and mechanical losses : A 230V shunt motor having an armature resistance of 0.05 W and a field resistance of 75 W draws a line current of 7 A while running light at 1120 rev/min. The line current at a given load is 46 A.
What will be the speed if the load torque is increased by 44 : A 220V dc series motor runs at 700 rev/min when operating at its full-load current of 20A. The motor resistance is 0.5W and the magnetic circuit may be assumed unsaturated. What will be the speed if: (i) the load torque is increased by 44

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What transmitter powers are needed at each transmitters

Assuming a 24 dB link margin is needed to account for fading and loss due to heavy rainfall on the longest link, while 12 dB link margin is sufficient for the shorter link, what transmitter powers are needed at each of the four transmitters

  How to design all components down to gate level

The circuit will have as inputs a minimum of two inputs; the binary equivalent of two decimal numbers of not greater than (10,000)10. The circuit will also produce a minimum of two outputs, the quotient and the remainder.

  Find the probibility thats screws drawn will be defective

Three screws are drawn at random from a lot of 200 screws, 10 of which are deffective. Find the probibility thats the screws drawn will be nen defective in drawing a.) WITH replacement

  Explain what bit pattern

What bit pattern (after you remove the beginning and ending flags and any stuffed bits) will the receiver pass on for higher level processing?

  What data type you would use for temperature

Indicate what data type you would use for the following variables: (a) the temperature (b) the number of days in a week (c) the number of days in a year (d) the number of months in a year

  Find the marginal pdfs and joint cdf

The amplitudes of two signals X and Y have joint pdf: fXY (x,y) = e^(-x/2)*y*e^(-y^2) for x>0 , y>0. (a) Find the joint CDF (b) Find P [sqrt(x) > y] (c) Find the marginal PDFs (d) Determine if X and Y are independent.

  What are measured values for the two resistances

What do you believe would happen, if you removed the 220 ohm resistor from the circuit and connected the LED directly to the 555 integrated circuit. Are there any appreciable differences between labeled, calculated.

  Calculate the optimum thickness of the layer

a. Calculate the optimum refractive index of a single layer thin film antireflection coating for the silicon air interface at this wavelength. b. Calculate the optimum thickness of the layer.

  Find the thevenin and norton circuits for the sensor

an unknown sensor is investigated by connecting resistors across the output and measuring the current through them. When a resistance of 30 is connected the current through it is 0.5A. When the resistance is replaced by 20

  What compresses one pound mole of an ideal gas

A container with a plunger compresses one pound mole of an ideal gas from 1 atmospheres pressure to 10 atmospheres. Calculate the amount of work done if the process is considered to be polytropic.

  How much hydrogen would be needed

How much hydrogen would be needed to give the car a range of 300 miles if the source of electricity is an on-board fuel cell with an efficiency that is 50% of the ideal?

  Determine the digital frequencies of the sampled signal

A composite analog signal is given in the following expression: x(t)=1.2 sin(2pi60ft)+0.0001cos(2pi1ft) -If this signal was sampled at 1000 Hz, derive the expression for the sampled sequence x[n] with n being the sampling index.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd