Induction of a uniform magnetic field 0.5 T. a flat conductor frame has an area of 25 cm ^ 2

| September 20, 2021 | education

Induction of a uniform magnetic field 0.5 T. a flat conductor frame has an area of 25 cm ^ 2 what electromotive force occurs in the frame if it is rotated 60 degrees in 0.01 s

B = 0.5 T.

S = 25 cm ^ 2 = 0.0025 m ^ 2.

t = 0.01 s.

∠α = 60 °.

EMF -?

According to Faraday’s law of electromagnetic induction, the EMF is determined by the formula: EMF = – ΔF / t, where ΔF is the change in the magnetic flux, t is the time of the change in the magnetic flux.

The “-” sign shows the direction of the current in the frame.

Let’s find the change in the magnetic flux in the frame according to the formula: ΔФ = B * S * cosα.

EMF = B * S * cosα / t.

The formula for the EMF will take the form: EMF = 0.5 T * 0.0025 m ^ 2 * cos60 ° / 0.01 s = 0.0625 V.

Answer: EMF = 0.0625 V will appear in the frame.



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