Notes
Power Dissipated in Moving the Conductor…
Power Dissipated in Moving the Conductor – For uniform motion of rod PQ, power delivered by external source is given as
Pmech = Pext = dW/dt = Fext×v = B2vl2/R×v
⇒ [Pmech = B2 v2 l2/R
Also, electrical power dissipated in resistance or rate of heat dissipation across resistance is given as
Pthermal = H/t = I2 R = (Bvl/R)2×R; Pthermal = B2 v2 l2/R
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