A) Henry
B) Weber
C) Ohm-second
D) Volt-second-\[{{(ampere)}^{-1}}\]
Correct Answer: A
Solution :
SI unit of mutual inductance is \[\frac{weber}{amp}=\frac{tesla\times {{m}^{2}}}{amp}=\frac{N\times m}{{{(amp)}^{2}}}\] \[=\frac{joule}{am{{p}^{2}}}=\frac{Coulomb\times volt}{am{{p}^{2}}}\] \[=\frac{volt\times \sec }{amp}=ohm\times s\] But practical unit is henry (H).
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