plz solve!!!!!

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Each of the two long parallel threads carries a uniform charge Î» per unit length. The threads are separated by a distane l. Find the maximum magnitude of the electric field strength in the symmetry plane of this system located between the threads.

#Physics #Electricity and magnetism

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3 Answers

1

Rohan Ghosh ·2009-04-28 20:32:27

in the symmetry plane of this system , each point is at the same distance from the two threads

let the distance be r

then the eletric field due to both the threads = Î»/2Ï€rÎµ₀

but they will be inclined at 2Î¸ where sinÎ¸=l/2r

so the net electric field will be along the plane=

2cosÎ¸(Î»/2Ï€rÎµ₀ )

differentiate it to get maximum

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noone ·2009-04-28 20:34:57

now get the max 'r' .

then find max E.

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noone ·2009-04-28 20:35:37

oh sry u posted.. i din c...

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω