potential difference

VITEEE 2015 Online › Electricity and magnetism questions › potential difference

Three identical batteries each emf 4V and negligible internal resistance are connected as shown in the figure . The potential difference between the points A and G (V_A-V_G)
A. 4V
B. -4V
C. 8V
D.-8V

The unit of the resistances shown in the figure is ohm

#Physics #Electricity and magnetism

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4 Answers

eureka123 ·2009-06-22 04:58:41

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sidsgr88 Bora ·2009-06-22 05:07:16

itll b B no cuurent thru the middle battery

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Dharun ·2009-06-22 05:22:08

apply kirchoff law just consider "current come from a battery and same amount returns in it" ANS=b

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eureka123 ·2009-06-22 10:55:55

Explaination::
Both the circuits are disjoint...so no current will flow through 4V battery connecting both circuits...

Now apply Krichoff law....u will get answer as b

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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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potential difference

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