Magnetic flux associated with a coil of 150 turns changes
from 60x10-5 wb to 4 x 10 5wb in 0.025 seconds. Calculate
the induce e.m.I.
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Answer:
Change n in magnetic flux Δϕ=1−10=−9 Weber
Time taken Δt=0.1 sec
So, emf induced in the coil E=−
Δt
Δϕ
⟹ E=−
0.1
(−9)
=90 Volts
Explanation:
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