Concentric Rings.PNG 2b Two concentric circular loops of radii b and 2b, made of the same type of wire, lie in the plane of the page, as shown above. A uniform magnetic field is confined to a region of radius a, where a < b, and the field is changing at a constant rate. The induced emf in the wire loop of radius b is ɛ. What is the induced emf in the wire loop of radius 2b? A 3. B) ɛ/2 © E/4 D 2ɛ 4ɛ
Concentric Rings.PNG 2b Two concentric circular loops of radii b and 2b, made of the same type of wire, lie in the plane of the page, as shown above. A uniform magnetic field is confined to a region of radius a, where a < b, and the field is changing at a constant rate. The induced emf in the wire loop of radius b is ɛ. What is the induced emf in the wire loop of radius 2b? A 3. B) ɛ/2 © E/4 D 2ɛ 4ɛ
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Transcribed Image Text:Concentric Rings.PNG
2b
Two concentric circular loops of radii b and 2b, made of the same type of wire, lie in the plane of the page, as shown above. A
uniform magnetic field is confined to a region of radius a, where a < b, and the field is changing at a constant rate. The induced emf
in the wire loop of radius b is ɛ. What is the induced emf in the wire loop of radius 2b?
B
ɛ/2
E/4
2ɛ
4ɛ
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