Question
A 15-loop coil experiences an induced emf of $0.78 \mathrm{~V}$ when the magnetic flux is changed in $0.45 \mathrm{~s}$. What is the change in magnetic flux?
Step 1
78 \mathrm{~V}$, the number of loops (n) is 15, and the time (t) is $0.45 \mathrm{~s}$. We are asked to find the change in magnetic flux ($\Delta \phi$). Show more…
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Figure $23.25$ shows the magnetic flux through a wire loop as a function of time. What is the induced emf in the loop at (a) $t=0.050 \mathrm{~s}$, (b) $t=0.15 \mathrm{~s}$, and (c) $t=0.50 \mathrm{~s}$ ?
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