vmc workshop doubt 1

VITEEE Coaching › Electricity and magnetism questions › vmc workshop doubt 1

two concentric and coplanar coils have radii a & b (>>a) as shown in figure.
Resistence of the inner coil is R.
Current in the outer coil is increased from o to i, then the total charge circulating in the inner coil is:

a) \mu(pie) i a²2 R b

b) \mu i a b2 R

c) \mu i a (pie) b²2 a R

d) \mu i b2 (pie) R

(the ans given is a)

#Physics #Electricity and magnetism

UP 0 DOWN 0 0 2
Post on FacebookPost anonymously?

2 Answers

Avinav Prakash ·2010-03-12 23:05:50

sandipan ..are u sure the ans doesnot have pi...in the numerator.....
or
its me who's makin da mistake

UP 0 DOWN 0
Post on FacebookPost anonymously?

Avinav Prakash ·2010-03-12 23:29:28

well its not dat tuff.......

flux due to outer circle(Ï†)=Î¼i2b*Ï€a²

emf=dÏ†dt

the current in inner circle(i)=emfR

thus charge in inner coil =idt=ans given .............(a)

UP 0 DOWN 0
Post on FacebookPost anonymously?

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

Close [X]

vmc workshop doubt 1

2 Answers

Your Answer

Add Image

Similar Questions