Conductor - induction

A conductor consisting of two circular loops with radii R = 5 cm is placed in a magnetic field with induction B = 0.6 T perpendicular to the field direction. What is the electromagnetic voltage induced in this conductor when the magnetic field disappears uniformly over 0.5 s?

Final Answer:

U =  0.0188 V

Step-by-step explanation:

$$\begin{gathered} R=5\text{cm}\to \text{m}=5:100\text{m}=0.05\text{m} \\ n=2 \\ B=0.6\text{T} \\ t=0.5\text{s} \\ S=n\cdot \pi \cdot R^2=2\cdot 3.1416\cdot 0.05^2\doteq 0.0157{\text{m}}^2 \\ U=B\cdot S/t=0.6\cdot 0.0157/0.5=0.0188\text{V} \end{gathered}$$

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