Potential difference among plate of parallel-plate capacitor
At what rate should the potential difference among the plates of a parallel-plate capacitor having a 1.8 µF capacitance be changed to generate a displacement current of 2.2 A?
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A point charge of 210 nC is positioned at the center of the uncharged spherical conducting shell 22 cm in radius. i) Determine the surface charge density on the outer surface of the shell?
(i) Determine the speeds of the two masses after the collision. (ii) Determine the change in kinetic energy of the system since of the collision?
At the other end there is a uniform magnetic field of around 1.92 mT, normal to the surface and directed outward. Determine the magnitude of the total magnetic flux via the curved surface?
Determine the specific heat of the metal sample? (The specific heat of brass is around 0.092 cal/g–C°.) Illustrate your work.
When the distance from the Earth to the Moon is around 3.8 x 10^8 m, then what diameter would be needed for a telescope objective to resolve a Moon crater 300 m in diameter? Suppose that a wavelength be 500 nm.
Compute the limiting angle of resolution for the eye, supposing a pupil diameter of around 2.00 mm, a wavelength of 500 nm in air, and the index of refraction for the eye of 1.33.
(i) Determine the initial angular velocity of the turbine? (ii) Determine how much time passes while the turbine is speeding up?
A cosmic-ray proton in interstellar space consists of energy of around 10.0 MeV and executes a circular orbit having a radius equivalent to that of Mercury’s orbit around the sun (5.80 x 1010 m). Determine the magnetic field in that area of s
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