190CHAPTER 20 20.40From ( )LItε=∆∆, the self-inductance is 3324.010V2.4010H10.0 A sLIt−−×===×∆∆Then, from BLNI=Φ, the magnetic flux through each turn is ( )( )35210H4.00 A1.9210T m500B−−×Φ==×⋅2.40LIN⋅=20.41The inductive time constant is LRτ=. From ( )= ∆∆, the self-inductance is L=with units of VVsAsAs=⋅=Ω⋅. Thus, the units of the time constant are ssΩ⋅=Ω. 20.42(a) The time constant of the RLcircuit is =, and that of the RCcircuit is RC=. If the two time constants have the same value, then
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