If a coil of `40` turns and area `4.0 cm^(2)` is suddenly remove from a magnetic field, it is observed that a charge of `2.0xx10^(-4)C` flows into the coil. If the resistance of the coil is `80Omega`, the magnetic flux density in `Wb//m^(2)` isA. 0.5B. 1C. 1.5D. 2

If a coil of `40` turns and area `4.0 cm^(2)` is suddenly remove from

1.	If a coil of `40` turns and area `4.0 cm^(2)` is suddenly remove from a magnetic field, it is observed that a charge of `2.0xx10^(-4)C` flows into the coil. If the resistance of the coil is `80Omega`, the magnetic flux density in `Wb//m^(2)` isA. 0.5B. 1C. 1.5D. 2
Answer» Correct Answer - B Charge, `DeltaQ=(Deltaphi)/(R)=(nxxBA)/(R)` `rArr` Magnetic flux density, `B=(DeltaQ.R)/(nA)=(2xx10^(-4)xx80)/(40xx4xx10^(-4))=1"Wb/m"^(2)`

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If a coil of `40` turns and area `4.0 cm^(2)` is suddenly remove from a magnetic field, it is observed that a charge of `2.0xx10^(-4)C` flows into the coil. If the resistance of the coil is `80Omega`, the magnetic flux density in `Wb//m^(2)` isA. 0.5B. 1C. 1.5D. 2

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