Wednesday
April 23, 2014

Homework Help: Physics

Posted by Steven on Monday, July 29, 2013 at 5:38am.

A wire is bent into the shape of an planar Archimedean spiral which in polar coordinates is described by the equation
r=bθ.
The spiral has N=100 turns and outer radius
R=10 cm (R is the distance from point O to point T). Note that in the figure below we show a spiral having only 3 turns. The circuit is placed in a homogeneous magnetic field perpendicular to the plane of the spiral. The time dependence of the magnetic field induction is given by
B=B_0 cos (ωt)
where
B_0=1 μT and ω=210^6 s−1
Determine, the amplitude of the emf in Volts induced in the circuit.

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