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Two parallel rectangular superconducting plates of length l, width b and separation a (l gtgt b gtgt a) are joined at each end to form a one-turn coil of negligible resistance. What is its self-inductance? How much energy is stored in the magnetic field when a steady current / flows? The separation a increases by a small amount deltaa. Calculate the various energy changes (a) when the coil includes in its circuit a lossless battery which maintains a constant current l, and (b) when the circuit consists of the coil alone. Deduce the magnitue and direction of the force per unit area between the two plates. |
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Answer» SOLUTION :`C_(1)=0.93mu F` `R_(1)=4.1k OMEGA` |
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