In a coil of resistance 50 Ω , the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil is

Question

In a coil of resistance 50 Ω , the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil is, 10 Wb, 20 Wb, 32 Wb, 40 Wb

MARKS App · Accepted Answer

According to the given graph I - t induced current ( I ) is obtained from the slope. Hence, I = 1 R d ϕ d t ⇒ d ϕ = I d t × R = area of triangle P O S × R = 8 × 0 . 2 2 × 50 = 40 Wb

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