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Grade 12General Physics

how to derive unit of pole strength as Am show me the derivation of units for pole strength

Profile image of asif iqbal
8 Years agoGrade 12
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1 Answer

Profile image of rajneesh chander
8 Years ago
we know, torque=MXB
M = torqe/ B
= Nm/Tesla 
= Nm/(N/m/A)     remember Tesla = force/q x vel.  (lorentz mag. force)
=Am2
now M=m x 2l
m= M/2l
= Am2/m
=Am