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Electromagnetism Question 4 (Advanced) An electromagnelic plane wave (ravels through space in the positive y direction. It is polarised in Ghc !-z plane, has frcque...

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Electromagnetism Question 4 (Advanced) An electromagnelic plane wave (ravels through space in the positive y direction. It is polarised in Ghc !-z plane, has frcquency of 30 MHz and and an intensity of 0.25 W/m?. Suppose wanG 10 uSC this wave to incuce a4 emf in square loop of wire_ TThe sides of the square loop of wire are 20 CI in length: (a) Describe how 4he loop should he oricnted to obtain the Maximum induced emf: (b) Give blc mathematical fOrI lor how this emf depeudls on time. Caleulate t

Electromagnetism Question 4 (Advanced) An electromagnelic plane wave (ravels through space in the positive y direction. It is polarised in Ghc !-z plane, has frcquency of 30 MHz and and an intensity of 0.25 W/m?. Suppose wanG 10 uSC this wave to incuce a4 emf in square loop of wire_ TThe sides of the square loop of wire are 20 CI in length: (a) Describe how 4he loop should he oricnted to obtain the Maximum induced emf: (b) Give blc mathematical fOrI lor how this emf depeudls on time. Caleulate the maxim CMf induced in the loop.



Answers

A circular loop of wire has radius 7.50$\mathrm { cm } .$ A sinusoidal electromagnetic plane wave trave traveling in air passes through the loop, with the direction of the magnetic field of the wave perpendicular to the plane of the loop. The intensity of the wave at the location of the loop is $0.0195 \mathrm { W } / \mathrm { m } ^ { 2 } ,$ and the wavelength of the wave is 6.90$\mathrm { m } .$ What is the maximum emf induced in the loop?


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