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Some magnetic flux is changed from a coi...

Some magnetic flux is changed from a coil of resitance `10 Omega`. As a result, an induced current is developed it, which varies with time as shown in Fig. 3.213. Find the magnitude of the change in flux through ythe coil in weber.

Text Solution

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The induced charge is `q=(Deltaphi)/R`
But , Area of i-t curve gives charge
`therefore Deltaphi=R xx"Area" ` of i-t curve , `Deltaphi=qR`
`=1/2 xx 4xx0.1 xx10`
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