In an inkjet printer,1 tiny drops of ink of inertia m are given a charge q and then fired toward the paper at speed v. they first pass between two charged plates of length l that create an uniform electric field of magnitude e between them. the field direction is perpendicular to the plates and to the initial path of the drops. the electric field deflects each drop from its initial horizontal path and is used to control what is printed on the paper ("steering" it to the right spot). (a) show (using kinematics) that the amount of vertical deflection is given by ∆y = 1 2 (q/m)(l/v) 2e. (b) for a drop of inertia 1.5 × 10−10 kg, an electric field strength of 1.2 × 106 n/c, a plate of length 10 mm, and a drop speed of 20 m/s, calculate the drop charge necessary to result in a deflection of 1.3 mm. how many excess or deficit electrons is this charge equivalent to? (c) are we justified in ignoring gravity here? explain and/or calculate.
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Physics, 21.06.2019 21:00
Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?
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Physics, 22.06.2019 19:20
Which best describes the difference between internal and thermal energy?
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Physics, 22.06.2019 20:20
An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states
Answers: 1
In an inkjet printer,1 tiny drops of ink of inertia m are given a charge q and then fired toward the...
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Computers and Technology, 23.01.2020 17:31