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UPCET / UPSEE Energy Density — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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The energy density (energy per unit volume) of a magnetic field $B$ in free space is:The energy stored per unit volume in a magnetic field $B = 0.1$ T in vacuum (take $\mu_0 = 4\pi \times 10^{-7}