A non-uniform thin rod is bent into an arc of radius R. The linear charge density λ of the rod depends on θ and is given by λ =λ0/cos θ where λ0 is a positive constant. The arc extends from θ =π/4 to θ =3π/4 as shown  a)Sketch the direction of the resultant electric field at the origin. b) Calculate the magnitude of the electric field E->.

Q: 28.0 V R 3. In the circuit shown in the figure below, find (a) the current in resistor R; (b) the…

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Q: Refer to the table below. Which statement is TRUE? Resistivity (Qm) 1.59 х 10-% Metal Silver 1.68 x…

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Q: In the diagrams, all light bulbs and all emf devices are identical. In which circuit (A, B, C, D, E)…

A: Given There are different circuit is shown in the figure. We have to choose those option in which…

Q: The pace at which a caterpillar climbing a leaf slows from 0.60 cm/s to 0.35cm/s is -0.03cm/s2. How…

A: Initial velocity (u) = 0.60 cm/s  Final velocity (v) = 0.35 cm/s Acceleration (a) = -0.03 cm/s2

Q: 2. (a) What is meant by “grounding” a charged body? (b) Explain how grounding a positively charged…

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Q: What is the material that can both allow and not allow flow of electric charge.

A: There are three types of material that can be found in nature based on the flow of electric charges…

Q: Which statement/s is/are true for an electron moving in the direction of an electric field? I) Its…

A: If we place a positive charge in an electric field then it moves from higher potential to lower…

Q: In each of the situations illustrated below, the lengths of the arrows indicate the speed of the…

A: Magnitude of induced emf depends on the rate of change of magnetic flux and it is directly…

Q: The voltage in circuit is 18 V and resistance is 6 ohms, find the current ?

A: Given: The voltage in the circuit is 18 V. The resistance of the circuit is 6 Ohm.

Q: In large CRT televisions, electrons are accelerated from rest by a potential differ of 19.17 kV and…

A: GivenPotential difference, V=19.17 kV=19.17×103 Vqe=1.602×10-19 Cme=9.11×10-31 Kg

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: RA = pL/πrA2  RB = pL /π(r22-r12)

Q: A car of mass 500 kg is traveling on a circular banked roadway that is inclined at an angle of 0 =…

A: Given value--- mass = 500 kg. angle = 20 degree.  radius = 100 m. We have to find--- minimum…

Q: The voltage in circuit is 18 V and resistance is 6 ohms, find the current ?

A: voltage in the circuit (V) = 18 volts Current = I The resistance (R) = 6 ohm

Q: The index of refraction of light in water is 1.33. What is the speed of light in water? 2.26 x 108…

A: given data index of refraction of light in water = 1.33 speed of light in vaccum = 3*10^8 m/s speed…

Q: A spherical Gaussian surrounds a point charge q. Describe what happens to the total flux through a…

A: Let the charge enclosed inside a gaussian surface = q Let the original flux through the surface = ϕ…

Q: from a concave mirror with a focal length of 40 cm. The size of the image is _____. Show Solution

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Q: Figure 1 shows a configuration of a flat plane and an arbitrary shape, both carrying surface charge…

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Q: 3. A metal is heated up to a temperature of 450°C. It is then exposed to a temperature of 302 K.…

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Q: f an object is 14 cm in front of convex mirror and image distance is 5.8 cm then it's focal length…

A: Given: The distance of the object is 14 cm from the convex lens. The distance of the image is 5.8…

Q: A car accelerates uniformly from rest and reaches aSpeedof 22.0 m/s in 9.00 s. If the radius of a…

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Q: Based on the uniform field shown below, which of the following movements requires more amount of…

A: Given A uniform electric field and potential is shown in the figure. We have to choose the correct…

Q: Topic: Impulse and momentum A bullet having mass of 0.002kg hits a stationary block of wood having…

A: Dear student The work energy theorm says that net work done done on any system is equal to change in…

Q: Nerve cells transmit electric signals through long tubular axons. These signals propagate due to the…

A: Charge on each ion, e = 1.6×10-19 C Total number of ions, n = 5.86×1011  Time, t = 0.0100 s Current,…

Q: A string fastened at both ends resonates at 420 Hz and 490 Hz with no resonant frequencies in…

A: The resonant frequencies of a string fastened at both ends are integer multiple of the fundamental…

Q: A negative 17 nC charge is at the origin and a charge of 6 nC is located at 0.3 m and 1.1 m.  A…

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Q: 2. Suppose that a resistor (Resistance R) and capacitor (Capacitance C) is con- nected such that the…

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Q: You are flying a paper glider. In still air it has a speed of -100km h^-1. It is travelling on a…

A: The expression for original velocity of the glider relative to the air and velocity is 86.6 I ^+50…

Q: Which of the following is the reflected ray for ray 2?       a     b     c     d

A: When light passes through focus became parallel to principal axis

Q: Which of the following is TRUE for a magnetic field magnitude?  a Magnetic field is stronger at the…

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Q: Two cylindrical resistors are made of the same material and have the same resistance. The resistors,…

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Q: A 120-V power line is protected by a 15-A fuse. What is the maximum number of "120V, 500W" light…

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Q: In large CRT televisions, electrons are accelerated from rest by a potential difference of 23.88 kV…

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Q: It refers to the "filtering" of light as it passes through a polarizing medium. A.Reflection of…

A: Reflection of light : It is defined a phenomenon by which light bounces back after striking the…

Q: Based on Biot-Savart's law, determine the magnetic field produced at: 3. Wire Circles 4. Solenoid

A: The Biot-Savart law states how the value of the magnetic field at a specific point in space from one…

Q: A 8.6kg suitcase from rest was pulled by an FA at an angle 38.8degrees. The displacement after 30…

A: Given data as per question mass =  8.6 kg displacement = 16.5m angle  =  38.8

Q: 4. For the circuit shown in the figure below, calculate (a) the current through each resistor and…

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Q: A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power…

A: Given Initial velocity of cheetah = u = 0 Final velocity of cheetah = v = 7.4 m/s time taken to…

Q: A particle is experiencing a uniform circular motion. Find the angular momentum? R= 5i +6j V= -3i +…

A: mass of particle (m) = 6 kg velocity = -3i^ + 4j^ units R = 5i^ + 6j^ units

Q: ples of

A: Gay Lussac's law

Q: The pace at which a caterpillar climbing a leaf slows from 0.52 cm/s to 0.28cm/s is -0.03cm/s5. How…

A: In the question, there is a typo. The unit of deceleration should be cm/s2 instead of cm/s5.…

Q: If R is the universal gas constant, what is the specific heat of a mole of monoatomic ideal gas at…

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Q: As a ship is approaching the dock at 45.0 cm/s, an important piece of landing equipment needs to be…

A: Motion perpendicular are independent of each other. Motion can be uniform or accelerated. Motion is…

Q: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

A: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

Q: 22) A rod of mass 20kg of length L = 60m is mounted a distance L/4 from its left edge. It is held in…

A: Free body diagram:

Q: + 5.0 x 10-6 C + 2.0 x 10-6 C 2.0 m Calculate the neutral point (based on the smaller charge)…

A: Electric field is given by Coulumbs law E = kq/r2  Here q are the charges  r is the distance between…

Q: Which of the following statements is true for electric current? The direction of electron flow is…

A: We know that current flow opposite to the direction of electron.

Q: ENGINEERING 0.40-kg not Iron horseshoe, just forge (see the accompanying figure), is dropped into…

A: Given data as per question initial temperature = 20 final temperature = 25 mass of horse shoe =…

Q: Calculate the minimum work needed to bring a charge q1 = +2 µC from infinity to a point 3×10−2 m…

A: The minimum work needed to bring a charge q1 from infinity to a distance r away from a second charge…

Q: A popgun uses a spring for which k=20N/cm. When cocked, the spring is compressed 3.0cm. How high can…

A: Given Data:- Spring constant of the pop gun is k=20N/cm=20×1 N1 cm×100 cm1 m=2000 N/m Compression of…

Q: (11.13) A 1.65-kg mass stretches a vertical spring 0.215 m. If the spring is stretched an additional…

A: Given: The mass of the object is 1.65 kg. The stretching in the spring due to the weight of the…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.