A parallel plate capacitor is charged to a potential of 3000 V and then isolated. Find the magnitude of the charge on the positive plate if the plates area is 0.40 m2 and the distance between the plates is 0.020 m.

Q: 14. What is the result of a. a ? Explain its meaning.

A: Given data as per question To calculate the result of a→  .a→

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Q: There are 2 paralell plate capacitors wich are uncharged. They are connected in a RC circuit. Here…

A: Given data: A plate area is 6.0 cm2=6×10-4 m A plate separation is 0.5 mm=0.5×10-3 m The dielectric…

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A: Write the expression for the power and substitute the required values to determine the current.

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Q: The set of three forces, as shown, 27) The magnitude of the equilibrium force (F) (in N) is: a) 8.1…

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A: Solution: Given: Question on single slit diffraction. λ = wavelength of light = 626 nm = 626 x 10-9…

Q: Describe the ultraviolet catastrophe and how it shaped scientists’ understanding of light.

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Q: Problem 8:  A beam of white light goes from air into water at an incident angle of 62.5° with…

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Q: Q4. a) With the aid of suitable labelled diagrams, describe the processes of carrier generation and…

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Q: ! Required information Consider the circuit diagram given below. 1.00 A B 6.00 £2 V R₁ V₁ 10.00 A F…

A: in this question we apply kirchoff's law in circuit loop 1.

Q: You switch from a 60x oil immersion objective with an NA of 1.40 to a 40x air immersion objective…

A: Given data NA=1.40 Index of refraction, n=1.51

Q: A concave mirror produces a virtual image that is three times as tall as the object. If the object…

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Q: A wave Y, = 4.5 sin (25t + 10x) sets up a stationary wave in a string. i). In which form will the…

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Q: 1. 2. 3. What is the focal length of -4.50 D lens? Where is the focal point in the above lens and is…

A: (1) Given  Power (P) = - 4.50 D  Power is given as :- P = 1/f  Therefore , f = 1/P     = 1/(-4.50) m…

Q: photons of energy 4.21 eV are incident on sodium, what is the maximum kinetic energy of the ejected…

A: 1. In a photoelectric effect, the maximum kinetic energy of an ejected electron from the surface of…

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Q: Problem 14:  Some telephoto cameras use a mirror rather than a lens to magnify distant objects.…

A: Given    Focal length of telephoto lens        f= 650 mm     Therefore ,  Focal length of the mirror…

Q: Determine the magnitude of the angular velocity of a tire at 0.1 minute if it had an angular…

A: Given Initial angular velocity is ω0=6 rad/s Angular acceleration is α=5 rad/s2 Time interval is…

Q: An electric can opener used in a 120 V circuit has a resistance of 110 Ω. Calculate the can opener’s…

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Q: A candle 5.50cm tall is 39.4cm to the left of a plane mirror. Where is the image formed by the…

A: Write the given values with the suitable variables. ho=5.50 cmu=39.4 cm Here, ho and u are the…

Q: Suppose you have a circuit with two resistors in series as shown below. If Resistor R₁=19.130, and…

A: Given data:   Two resistors are connected in series  R1 = 19.13 Ω and R2 = 13.24 Ω Required: The…

Q: Approximating the eye as a single thin lens 2.70 cm from the retina (a) find the focal length of the…

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Q: 4 When a resistor with resistance R is connected to a 1.50-V flashlight battery, the resistor…

A: Given data V=1.5 VP=0.0625W

Q: A gold wire of 0.500 mm diameter has 8.50 × 1028 conduction electrons per cubic meter. If the drift…

A: Given data:  Diameter (d) = 0.500 mm = 0.500×10-3 m Number of electrons per cubic meter (n) =…

Q: a) Draw the relative orientations of the vectors v, E, and B and also the forces of FE and FB . b)…

A: If a beam of electrons flowing in a direction with velocity v under the influence of electric field…

Q: How would you describe half-life?

A: Half life    Half-Life is  the time interval in which  mass or number of nuclei of a radioactive…

Q: of the 2000 Value. 23. A new offshore wind project will consist of 200 wind turbines, each with a…

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Q: Which temperatures below are the same 21°F? A.)  273 K B.)  267 K C.)  -6°C D.)

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Q: A ray of light would change direction when (Check all that apply): A.) Changing mediums at an…

A: In case of reflection, the light ray incident on a reflector (smooth shiny surface) and reflects…

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Q: In the Compton Effect, an X-ray photon scatters from a free electron. Find the change in the…

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Q: Problem 3:  A myopic man has a far point of 110 cm. What power contact lens in D (when on the eye)…

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Q: (08): If the bridge is balanced (when there is no current through the galvanometer) when R4=4 2 and…

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Q: Q4. A. Use the graph as shown below. Determine the half-life of Plutonium-239. Undecayed particles…

A: Given  At , t = 0  Amount of Plutonium-239  &  Carbon -14 are      100℅  .  (A) from given graph…

Q: Problem 3:  Your camera’s zoom lens has an adjustable focal length ranging from 75 to 150 mm.  Part…

A: Given data:  The range of focal length from 75 mm to 150 mm Required: The maximum and minimum power

Q: A 24.7 eV electron has a 0.247 nm wavelength. If such electrons are passed through a double slit and…

A: Write the equation of Bragg’s law. Here, n is the order, λ is the wavelength, d is the slit…

Q: Problem 8:  A small telescope has a concave mirror with a 2.6 m radius of curvature for its…

A: The radius of curvature for the objective  is R0=2.6 m The focal length of the eyepiece is fe=3.4…

Q: A. Plane Mirror Position of the object Position of the image Location of incident ray of the tail of…

A: Basic rules for distance measurement in mirrors Mirror is to be taken at origin Distances…

Q: m V h M - V' 11. A bullet, mass m, is fired with velocity v, at a wooden block, mass M, that is…

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Q: 8. Is Dot product a vector or a scalar product? Explain.

A: By definition dot product between 2 vectors is : A⇀.B⇀=ABCosθ That is the product of the magnitude…

Q: Let be two vectors, such that a=(3+2j-2k) cm and b=(2î+2j+k) cm, calculate: 1) The angle between the…

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Q: What is the kinetic energy of a proton moving with a speed of 0.950c. mp = 1.67 x 10-27 Kg Group…

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Q: Which of these is NOT a correct explanation for how convection works? Hotter fluids rise above…

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Q: resistance

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Q: Question #1 of 3:Rocky McBlock is a receiver for the Kennesaw Kilowatts in Metro Metric Football…

A: Given:-   Rocky leaves the line of scrimmage when the ball is snapped and runs forward for t1=  12…

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Q: A uniform ladder of mass 20 kg and length 13 m is resting, with its base on rough horizontal ground…

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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.