If 62.9 cm of copper wire (diameter = 1.15 mm, resistivity = 1.69 × 10-8Ω·m) is formed into a circular loop and placed perpendic
ular to a uniform magnetic field that is increasing at the constant rate of 8.43 mT/s, at what rate is thermal energy generated in the loop?
1 answer:
Answer:
The answer is "
"
Explanation:
length of the copper wire:
L= 62.9 cm
r is the radius of the loop then:


area of the loop Is:


change in magnetic field is:

then the induced emf is: 

resistivity of the copper wire is:
1.69 × 10-8Ω·m
diameter d = 1.15mm
radius (r) = 0.5mm

hence the resistance of the wire is:


Power:


The final answer is: 
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