Capacitor-5

BITSAT 2015 Preparation › Electricity and magnetism questions › Capacitor-5

A capacitor of capacitance C is charged by a battery of EMF E and internal resistance r. A resistance of 2r is also connected in series with the capacitor. The amount of heat liberated inside the battery by the time capacitor is 50% charged is

(a)3E²C8
(b)E²C6
(c)E²C12
(d)E²C24

#Physics #Electricity and magnetism

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2 Answers

Shivam Tiwari ·2013-04-05 03:23:13

(a)

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Akash Anand Wrong....its from DC Pandey, Rohit had a doubt on it.
Upvote·0· Reply ·2013-04-05 03:25:20
Shivam Tiwari ha sir ye wrong hai......!!!!
Upvote·0· Reply ·2013-04-05 03:27:56
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1161

Akash Anand ·2013-04-05 06:17:23

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Shivam Tiwari calculation mistake kar rha the sir.........hum time ko RC*ln2 calculate kar rha tha............!!!!
Upvote·0· Reply ·2013-04-05 09:19:11
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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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Capacitor-5

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