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In a coil of resistance 100Omega, a curr...

In a coil of resistance `100Omega`, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is

A

200 Wb

B

225 Wb

C

250 Wb

D

275 Wb

Text Solution

Verified by Experts

The correct Answer is:
C
Induced emf,
`|e|=(dphi)/(dt)or,iR=(dphi)/(dt)`
or, `intdphi=Rintidt`
or, `phi=Rxx` area enclosed by the graph and axes
`=100xx(1)/(2)xx0.5xx10=250Wb`
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  1. In a coil of resistance 100Omega, a current is induced by changing the...

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