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[Post New]6 Dec 2007 18:44:43 IST
    Subject: Re:Find the Induced Current
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rhd92781 (686)

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Olaaa!! Perrrfect answer. 118  [166 rates]
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mag field inside solenoid, B=uni
B=unisinwt
this field is changing in area of solenoid, A=a^2
flux, =BA = unia^2sinwt
emf induced,
e=-d/dt = -unia^2wcoswt
 
area of shell = 2Rd, length=L, resistivity=p
then resistance, R=pl/a
R=pL/2Rd
 
so induced current, I=e/R
 
tell me if m corrct or not..
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