Why are dielectric materials used in capacitors

Q: zero? Three point charges are arranged along the -axis. Charge q1 = +3.00 µC is at the origin, and c...

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Q: Calculate the main-sequence lifetimes of (a) a 4 ?⨀ star, and (b) a 0.75 ?⨀ star. Express the lifeti...

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Q: A 38.5 kg block is attached to a pulley and placed on a horizontal desk. The pulley is attached to a...

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Q: A 4.0-kg object's velocity-vs-time graph is shown below. What is the net force on the object when t=...

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Q: What frequency is observed by a stationary pedestrian when a police siren (1200 Hz) recedes at 66 ft...

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Q: the disk is 0.400 m. Find the emf generated between the brushes. When superconducting coils are used...

A: First we need to find formula for emf generated using basic definition of emf and magnetic flux.  Th...

Q: Please help! At noon, ship A is 70 km west of ship B. Ship A is sailing south at 40 km/h and ship B ...

A: Here, the ships are travelling north and south. They are travelling in exactly opposite direction on...

Q: - 0.3 m/s 1.6 m/s m=0.6kg m=0.7 kg m=0.6kg m=0.7 kg -0.45 m/s m-0.6kg m=0.7 kg

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Q: 9.8m diameter balloon is filled with helium at 21°C and 206.16kPa. Determine the mass of the helium ...

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Q: 3. A mass is placed on an inclined at 36.0 degrees. The coefficients of friction are 0.265 (kinetic)...

A: The situation is shown below   We have R=mgcos36f=μR =μmgcos36

Q: Question 6* A sprinter in a 100m race accelerates uniformly for the first 35 m and then runs with co...

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Q: (II) Three vectors are shown in Fig. 3-35. Their magnitudes are given in arbitrary units. Determine ...

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Q: A truck covers 40.0m in 8.50s while smoothly slowing down to a final speed of 2.80m/s. A. find the o...

A: Given value--- distance = 40m. time = 8.5 s. final speed = 2.8 m/s. We have to find--- original s...

Q: A 95 kg paratrooper is falling at terminal velocity, a) Draw a free-body diagram of the paratrooper ...

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Q: A man is trying to move an object (m 14.0 kg) by pulling upward on the rope at an angle of 53° above...

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Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J L{2. 18 J 3. 36 J 4. 48 J

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Q: The motion of a disc about a fixed axis located at an origin O (see diagram) during a time interval ...

A: To solve this, we integrate the angular position equation to find the angular velocity. ω = dθdt Int...

Q: Given that: A = xi + yj + zk, determine the value of: î (f x î) + ĵ x (f x j) + k x (f x k )

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Q: 5. What happened for a conductor at a constant voltage and raising the temperature applied to it? Al...

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Q: When we subtract a velocity vector from another velocity vector, the result is: a. a displacement. b...

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Q: DRAWING ELECTRIC FIELDS Follow the rules of electric fields and draw what the electric fields looks ...

A: Electric Field : It can be considered as an electric property associated with each point in the spac...

Q: Two progressive waves yj = A sin(x - ot) and y2 = A sin(x – wt – 5 ) travel in the same direction. C...

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Q: A ball is thrown horizontally from the top of a building 22m high.the ball strikes the ground at a p...

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Q: An aircraft lands with a velocity of 79m/s and decelerates along the runway at 1.3m/s^2. How much ru...

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Q: A 7.9-kg rock and a 5.1 x 104 kg pebble are held near the surface of the earth. (a) Determine the ma...

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Q: A block weighing 100N is held on a 40˚ incline by a bar attached to a 150N block on a horizontal  pl...

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Q: A ball is thrown straight up from point A, reaches a maximum height at point B, and then falls back ...

A: this problem is similar to the projectile motion.   When a projectile is thrown, it goes up due to t...

Q: An object is thrown horizontaly with a speed of 30 m/s from the oo of a building Complete the table ...

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Q: What is the equivalent capacitance (in F) between points a and b? All capacitors are 1.5 F.

A: Required:- We need to calculate equivalent capacitance between point a and b.   Formula:- When two c...

Q: Consider the charge distribution provided below. Given the position and sign (+ or -) of the two cha...

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Q: Direction: Answer the following questions. 1. A charge of 4.50 x 10-8 C is placed in a uniform elect...

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Q: The capacitance of a spherical capacitor with inner radius a and outer radius b is proportional to: ...

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Q: Suppose that C Cos (wat) and D Sin (wot) are two independent solutions of the SHO differential equat...

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Q: Thermodynamics 3. An insulated beaker with negligible mass contains 0.250 kgm of water at 75.0°C. H...

A: Given: The mass of the water is 0.25 kg. The initial temperature of the water us 75oC. The initial t...

Q: Diagram the forces acting on the object being asked. DESCRIPTIONS FBD DESCRIPTIONS FBD 1. A book is ...

A: As you have uploaded multiple subparts, we will solve first three subparts for you. To get remaining...

Q: The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth’s total mass an...

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Q: A solid insulating sphere of radius 0.07 m carries a total charge of 25 µC. Concentric with this sph...

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Q: Which of the following is an example of a vector quantity? a. volume b. velocity C. mass d. temperat...

A: Explanation :- A vector quantity has both magnitude as well as direction. So checking options- a- As...

Q: 1. As shown in the figure below, two long straight wires are each carrying a current. The left wire ...

A: Given,  I1 = 5.6 mA I2 = 7.8 mA x1 = - 21 cm x2 = 21 cm We know that the magnetic field due to a lon...

Q: How many kilograms of water at 100.0°C can be vaporized if 1278900 J of heat are added to the water?...

A: Heat added to water Q= 1278900 J Latent heat of vapourisation = 2.26 x 106 J/kg Let m = vapour vapou...

Q: The kinetic energy of a 4.0 kg object moving at 3.0 m/s is: 1. 12 J *2. 18 J 3. 36 J 4. 48 J

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Q: 4 5 3 times the charge of the other 6 U

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Q: The forces are acting on a 0.25-kg object as shown. What is the x-component of the object’s accelera...

A: Given value--- Mass = 0.25 kg. We have to find--- What is the x-component of the object’s acceler...

Q: • Part A A wire of length L and cross-sectional area A has resistance Ř What will be the resistance ...

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Q: Question 21 If gravity pulls you down toward the center of Earth with a force of 500 N, how much upw...

A: Given: Normal Force = 500 N  

Q: A 10.6 m long uniform ladder that weighs 428 N is resting against a very slimy wet moss covered wall...

A: GivenLength of ladder, L=10.6 mWeight of ladder,W=428 NWeight of firefighter,w=785 N

Q: Given that, bz (400mm x 3000)mm b3(400mmx yootim) Area 100000mm? %3D 400 XB00 01200000 mm2 Ab3 = 400...

A: Write the relationship between stress and area. For constant force F, the stress σ is inversely pro...

Q: The 67.5-kg block A is released from rest. Determine the velocity in m/s of the 28.1-kg block B in 6...

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Q: A disk with a radius of 4.01 meters is rotating with an angular speed of 8.01 rad/s. The angular spe...

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Q: An object with a net charge of 24 µC is placed in a uniform electric field of 610 N/C directed verti...

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Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.