A straight chain consisting ofn identical metal balls is at rest in a region of free space as shown. In the chain, each ball is connected with adjacent balls by identical conducting wires. Length l of a connecting wire is much larger than the radius r of a ball. A uniform electric field E pointing along the chain is switched on in the region. Find magnitude of induced charges on one of the end ball. E (b) 2ле,r (n -1)IE (d) 4rɛ, (n – 1)° l®E (а) 2ле, rnlE (c) 47ɛ,r(n–1)1E

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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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21. A straight chain consisting of n identical metal balls is at rest in a region
of free space as shown. In the chain, each ball is connected with adjacent
balls by identical conducting wires. Length l of a connecting wire is
much larger than the radius r of a ball. A uniform electric field E
pointing along the chain is switched on in the region. Find magnitude of
induced charges on one of the end ball.
(a) 27E,rnlE
(b) 2ле, r(п -1)IE
(с) 4ле,r (п -1)1E
(d) 4ле, (п — 1)* РЕ
Transcribed Image Text:21. A straight chain consisting of n identical metal balls is at rest in a region of free space as shown. In the chain, each ball is connected with adjacent balls by identical conducting wires. Length l of a connecting wire is much larger than the radius r of a ball. A uniform electric field E pointing along the chain is switched on in the region. Find magnitude of induced charges on one of the end ball. (a) 27E,rnlE (b) 2ле, r(п -1)IE (с) 4ле,r (п -1)1E (d) 4ле, (п — 1)* РЕ
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