The magnetic flux through a circuit of resistance R changes by an amount `Delta phi` in a time `Delta t`. Then the total quantity of electric charge Q that passes any point in the circuit during the time `Delta t` is represented by

Options

A. `Q=(Deltavarphi)/(Deltat)`
B. `Q=(Deltavarphi)/(Deltat)xxR`
C. `Q=-(Deltavarphi)/(Deltat)+R`
D. `Q=(Deltavarphi)/R`

Answer

D

Explanation

`e=(Deltavarphi)/(Deltat)andi=e/RrArr(Deltavarphi)/(RDeltat)=i`
`rArr(DeltaQ)/(Deltat)=(Deltavarphi)/(RDeltat)rArrDeltaQ=(Deltavarphi)/R`.