AP EAMCET202023 Sep 2020Morning ShiftPhysicsElectromagnetic InductionActual
The magnetic flux through a circuit of resistance R changes by an amount Δ ∅ in time Δ t , Then the total quantity of electric charge Q . which is passing during this time through any point of the circuit is given by_____
Options
- AQ = Δ ∅ Δ t
- BQ = Δ ∅ Δ t × R
- CQ = - Δ ∅ Δ t + R
- DQ = Δ ∅ R
Correct answer
D. Q = Δ ∅ R
Step-by-step solution
Induced emf e = ∆ ϕ ∆ t current in coil i = e R ⇒ i = 1 R ∆ ϕ ∆ t charge flow Q = i ∆ t ⇒ Q = 1 R ∆ ϕ ∆ t ∆ t ⇒ Q = ∆ ϕ R