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The magnetic flux through a coil varies ...

The magnetic flux through a coil varies with time as `phi=5t-6t+9.` The ratio of E.M.F. at `t=0s" to "t=0.5s` will be

A

`9:1`

B

`1:6`

C

`6:1`

D

`1:9`

Text Solution

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The correct Answer is:
C
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