DOUBts..help!!!!!

IIT JEE Papers › Electricity and magnetism questions › DOUBts..help!!!!!

1.when the switch is closed, the number of times th current through the circuit is 0 in a second? a.5000/pi b.2500/pi c.its never 0 d.it is always 0
2.What is the P.D across PQ at the instant the switch is closed
a.0 b.3V c.9V d.6v

#Physics #Electricity and magnetism

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5 Answers

rahul nair ·2009-06-11 07:56:16

pls.reply..............

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rahul nair ·2009-06-11 11:31:11

???????/

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rahul nair ·2009-06-11 22:50:44

urgentttttttttttt.......................

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Celestine preetham ·2009-06-11 22:56:58

1 always 0 ( voltages are balanced)

2 0 ( L offers infinite R in beginning)

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rahul nair ·2009-06-11 23:49:34

thanks cele........even i had the same ans but wasnt sure though........

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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

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DOUBts..help!!!!!

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