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The magnetic flux through a coil of wire with two loops has a charge of 88 Wb in 0.42...

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lkehoe | Valedictorian

Posted April 14, 2013 at 4:29 PM via web

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The magnetic flux through a coil of wire with two loops has a charge of 88 Wb in 0.42 seconds.  What is the magnitude of the emf induced in the coil?  

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pramodpandey | College Teacher | Valedictorian

Posted April 15, 2013 at 6:14 AM (Answer #1)

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Let Induced emf is  `epsi`  ,so we can define

`epsi=(N.Deltaphi)/(Delta t)`

where  N = no. of turns  =2

         `Deltaphi= ` change in magnetic field =88Wb

         `Deltat=`  change in time = .42 Sec

So

`epsi=(2xx88)/(.42) V`

`=4.190` V

 

 

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