3. A solenoid is built by N revolving around a core whose magnetic permeability is , with a radius of R [m], a length 10

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answerhappygod
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3. A solenoid is built by N revolving around a core whose magnetic permeability is , with a radius of R [m], a length 10

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3. A solenoid is built by N revolving around a core whose
magnetic permeability is , with a
radius of R [m], a length 10 times its radius. A cable is
used whose resistance per unit length is [/m].
If a current i = cos
(wt) flows through this solenoid, calculate the electric
potential difference across the solenoid.
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