Question

A square, single turn coil 0.20m on a side is placed with itsplane perpendicular to a constant magnetic field. An EMF of 18mV isinduced in the coil winding when the area of the coil decreases ata rate of 0.10m^2/s. What is the magnitude of the magneticfield?

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asked 2021-01-22
A square, single turn coil 0.20m on a side is placed with itsplane perpendicular to a constant magnetic field. An EMF of 18mV isinduced in the coil winding when the area of the coil decreases ata rate of 0.10m^2/s. What is the magnitude of the magneticfield?

Answers (1)

2021-01-23

Use formula \(\displaystyle{E}={\frac{{N\times{B}\times{A}}}{{{t}}}}\) where E = 18 mV.
N= 1.
A/t =0.2 m2/s.
therefore B = 0.18 T.

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