The magnetic flux through a circuit of resistance R changes by an amount Δ ∅ in time Δ t ,…

The magnetic flux through a circuit of resistance R changes by an amount Δ∅ in time Δt, Then the total quantity of electric charge Q. which is passing during this time through any point of the circuit is given by_____
  1. Q=Δ∅Δt
  2. Q=Δ∅Δt×R
  3. Q=-Δ∅Δt+R
  4. Q=Δ∅R

Solution

Induced emf  e=∆ϕ∆t

current in coil 

i=eR

⇒i=1R∆ϕ∆t

charge flow 

Q=i∆t

⇒Q=1R∆ϕ∆t∆t

⇒Q=∆ϕR

Asked in: AP EAMCET 2020 (23 Sep Shift 1)

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