Careful measurement of the electric field at the surface of a black box indicates that the net electric flux is going inward through the surface of the box is 9.0 kN-m2/C. What is the net charge inside this unknown box? (En = 8.854 × 10 12 C2/N-m²) O -80. pC O +80. nC O none of the given choices -80. nC O +80. pC

Q: A long silver rod of radius 4.9 cm has a linear charge density of -6.2 µC/cm on its surface. Part 1…

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Q: 1. A 30 cm long thin-walled cylinder of radius R = 3.5 cm, has charge of 1 x 10-8 C uniformly spread…

A: Given: The length of the cylinder is l = 30 cm The radius of the cylinder is R = 3.5 cm The charge…

Q: The electric flux through a square-shaped area of side 0.5 cm near a large charged sheet is found to…

A: Electric flux φ = E̅•A̅     = EA Cosθ

Q: A spherical shell of radius 1.50 m contains a single charged particle with q = 24.0 nC at its…

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Q: 1) What is A the linear charge density along the arc? C/m Submit 2) What is Ex, the value of the…

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Q: An infinite slab of charge of thickness 2zo lies in the xy-plane between z = -Zo and z = +zo. The…

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Q: A rod of length 47.67 m has a total of 133 protons. Charge of a proton = 1.61××10-19 C. 1.…

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Q: long string in a uniform electric field as shown in Fig- ure P23.33. If the ball is in equilibrium…

A: Given data:  Mass of the ball (m) = 2.00 g = 2.00 × 10-3 kg Length of string (L) = 20.0 cm Angle (θ)…

Q: A single point charge is located at the center of a cube. The length of each edge of the cube is 5.0…

A: Electrostatic.

Q: The charge in the figure is +8.854e-12 C. The charge is suspended entirely inside the volume of the…

A: Given: The value of charge is 8.854×10-12 C.            The distance of the charge from apex of…

Q: Careful measurement of the electric field at the surface of a black box indicates that the net…

A: Given that, Net inward electric flux(Φ)= 9× 10³ N m²/ C €0= 8.854× 10-¹² C²/N m²

Q: There is a cube with sides 4 cm and center at the origin. Inside the cube are two charges, q1 = +9…

A: according to Gauss's theorem electric flux = qenc /ε₀

Q: A spherical shell of radius 1.70 m contains a single charged particle with q = 71.0 nC at its…

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Q: A spherical shell of radius 1.80 m contains a single charged particle with q = 70.0 nC at its…

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Q: The electric flux through a square-shaped area of side 3.5 cm near a large charged sheet is found to…

A: Given data :  Electric flux = 1.3 × 10-5 N/ m2 × C  Area of square = 3.5 × 10-2 m  Help of gauss law…

Q: oint P sets above an infinite line of charge 2 m in the positive z direction. The line of charge…

A: Distance of point P, r = 2 mCharge density, λ = -5.0 x 10⁶ C/mField at P, E = ?

Q: ++ + ++ + ++ + Two horizontal squares metal plates, with a side of 10 cm, are placed horizontally…

A: Since electric force is much much greater than gravitational force, then we can ignore gravity..

Q: Inside a spherical surface is a 5.3 x 106C and a -2.2 x10-6 C charge. What is the total electric…

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Q: An infinite sheet charge of has a charge density of +44.81 pC/m2 and covers the entire x-y plane. A…

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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.