Questions

The magnetic flux $ϕ$ through a coil varies with time t as shown in Fig.
Which graph shown in Fig. best represents the variation of induced emf e in the coil with time t.

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detailed solution

Correct option is D

The graph shown in Fig. is a sine curve. Henceϕ=ϕ0sin⁡ωt=ϕ0sin⁡2πtTInduced emf ise=−dϕdt=−ϕ0×2πTcos⁡2πtT=−e0cos⁡2πtTIt is clear that the correct choice is (4).

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The magnetic flux ϕ through a coil varies with time t as shown in Fig.Which graph shown in Fig. best represents the variation of induced emf e in the coil with time t.

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Ready to Test Your Skills?

free study material

The magnetic flux $ϕ$ through a coil varies with time t as shown in Fig.
Which graph shown in Fig. best represents the variation of induced emf e in the coil with time t.