Checking magnetic flux and energy dissipation solution

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bckcookie
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Homework Statement



Please let me know whether it's wrong for my attached solution.

Homework Equations



i = (d∅/dt)/R

The Attempt at a Solution



In part (d), does it calculate wrong??
In part (e), where has the dissipated energy? is it for heat energy??

Thanks!
 
Attachments
  • Hand-drawn graph on graph paper of a piecewise-linear curve plotted against two axes, with vertical axis labelled t/s running 0.03 to 0.12 and horizontal axis labelled i/A running from -1.5 to 1.5.
    Q2c1.jpg
    23.2 KB · Views: 478
  • Handwritten physics working on lined paper: part c) gives resistance 6 Ω, B = 0.3 T, loop area EFGH = 0.16 m², flux Φ = BA cos θ, and currents at t = 0, 0.1 s and 0.125 s; part d) gives P = I²R = (1.6 × 10⁻⁴)² × 1.6 = 1.536 × 10⁻⁷; part e) is marked with question marks.
    Q2cde.jpg
    13.4 KB · Views: 477

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