In static equilibrium, the potential difference between two points inside a solid piece of metal: is zero because metals block electric interactions. is zero because the electric field is zero inside the metal.   is non-zero if the piece of metal is not spherical. is non-zero if there are charges on the surface of the metal. is non-zero for reasons not given above. is zero for reasons not given above.

Q: A 240 pF planar condenser has charges of ± 40 nC on its armatures which are 0.2 mm apart. Determine:…

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Q: A hydrogen atom's nucleus consists of a single proton with an electrical charge of + 1.6 x 10 -19 C.…

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Q: Two point charges, Q₁ and Q2, are separated by a distance R. If the magnitudes of both charges are…

A: Given data: Two point charges Q1 and Q2 Distance between charges = R New charges Q'1 = 2Q1 and Q'2 =…

Q: A molecule of DNA (deoxyribonucleic acid) is 2.18 ?m long. The ends of the molecule become singly…

A: Write the given values with suitable variables. L=2.18 μm=2.18×10-6 mΔL=1.30%L=1.301002.18×10-6…

Q: A glass object receives a positive charge by rubbing it with a silk cloth. In the rubbing process,…

A: Answer:   Electrons have been removed.

Q: An empty metal paint can is placed on a marble table, the lid is removed , and both parts are…

A: Given data: for the first case: The charge of the penny is +5 nC. The nickel and dime are…

Q: How much work is required to set up the four-charge configuration of the figure if q = 1.61 pC, a =…

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Q: Point charges of 25.0 µC and 41.0 µC are placed 0.500 m apart. (a) At what point along the line…

A: Charge 1 ( q1 ) = 25.0 µC Charge 2 ( q2 ) = 41.0 µC Distance ( r ) = 0.500 m

Q: In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at…

A: Given ,     K.E of alpha particle =3.98 MeV =  3.98×106 eV To find the nearest distance of approach…

Q: Two charges, +g and +2q, are held in place on the x axis at the locations x=-d and x = +d,…

A: For the given three charges representation it is mentioned that two charges, +q and +2q, are held on…

Q: n 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a…

A: Given,charge in the alpha particle, qα = +2echarge on the gold nucleus, qn = +79eInitially when the…

Q: What is the magnitude of the electric field at the dot?

A: A space in which potential is decreasing at the rate 200 V/m. We know the direction of electric…

Q: Two red blood cells each have a mass of 9.0x 10-14 kg and carry a negative charge spread uniformly…

A: 1) Apply the energy conservation equation and substitute the corresponding values to calculate the…

Q: +2.0 x 10-6 C -6.0 x 10-6 C +2.0 x 10-6 C Three identical insulated metal spheres, Z, Y and X, have…

A: Remember whenever metal spheres are touched, the charge is equally distributed between them. now…

Q: Electric charge can accumulate on an airplane in flight. You may have observed needle-shaped metal…

A: The given total charge is  We find out the electric potential and electric field.

Q: (a) A 1μC charge is at the center of the square shown below. How much external work is needed to…

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Q: 1. A balloon is rubbed with a cloth then brought close to someone’s long hair. The hair begins to…

A: As per guidelines we are suppose to do only one question from multiple question's kindly post second…

Q: An electron starts from rest 37.4 cmcm from a fixed point charge with -0.146 nCnC .   How fast…

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Q: Two identical conducting spheres A and B are initially electrically neutral. Sphere A is given a…

A: In this problem, we are dealing with conducting spheres and electric charges.When two conductors…

Q: A small plastic ball of mass 8.68 × 10-3 kg and charge +0.155 μC is suspended from an insulating…

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Q: airplane, has a radius of 6.00 m, and the other, representing the tip of the needle, has a radius of…

A: Electric Potential The electric potential at a point is the amount of work done by an external…

Q: The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point…

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Q: gold foil. He unexpectedly with then current models of atomic In 1910 Rutherford performed a classic…

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Q: The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point…

A: The magnitude of electric field at a point on the perpendicular bisector of an electric dipole is…

Q: An infinite wire (R = 0.05 c m) is charged to λ = 2.5 μ C / c m.  An electron is knocked out of the…

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Q: #10: A molecule of DNA (deoxyribonucleic acid) is 2.17 µm long. The ends of the molecule become…

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Q: Problem-2 An electron is placed at-rest in a uniform electric field E = (2.00 x 10-6N/C) and then…

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Q: In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at…

A: The initial energy of the α particle = V×e                                                        =…

Q: In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at…

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Q: Two metal spheres, each of radius 4.2 cm, have a center-to-center separation of 1.9 m. Sphere 1 has…

A: Given, two metal spheres Radius, r =4.2 cm Centre of separation, d=1.9 m Charge on 1st sphere,…

Q: An alpha particle with kinetic energy 11.0 MeV makes a head-on- collision with a lead nucleus at…

A: We can find the distance of the closest approach of the two particles. At the point of the closest…

Q: When the electric field in air exceeds a value of EDB = 3*10^6V/m (the dielectric strength),…

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Q: 4. Three point charges -q, +q, and +q are on the x-axis as shown. The negative charge is at position…

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Q: An electron is shot directly toward the center of a large metal plate that has surface charge…

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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.