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A magnetic field of flux density 10T alt...

A magnetic field of flux density 10T alts normally to the coil of 50 turnsd having `100cm^(2)` area. Find emf induced, if the coil is removed from the magnetic field in 0.15S.

Text Solution

Verified by Experts

Given :
B = 10T, N = 50turns
`A=100cm^(2)=10^(-2)m^(2)`
dt = 0.15S
Magnetic flux linked with the coil initially,
`phi_(1)=NBA=50xx10xx10^(-2)=wb`
But magnetic flux linked with the coil finally, i.e(when removed from 'B')
`phi_(2)=0`
Formula :
`therefore"emf induced,"e=-(dphi)/(dt)`
`=-((phi_(2)-phi_(1)))/(dt)=-((0-5))/(0.15)`
`e=33.33V`
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