A horizontal wire 20m long ans laying east - west falls with velocity of 10m/s normal to the Earth's magentic field of 0.5× 10 ‐⁶T. What is the magnitude of induced emf in the wire?
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Answer:
l=20m, v=10m/s, B=0.5×10^4T
Explanation:
The maganetude of the induced emf, |e|=Blv=5×10"^5(20)(10)=10^2V=10mV
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