1.

At a place the value of horizontal component of the earth's magnetic field H is \[3\times {{10}^{-5}}\,Weber/{{m}^{2}}\]. A metallic rod AB of length 2 m placed in east-west direction, having the end A towards east, falls vertically downward with a constant velocity of 50 m/s. Which end of the rod becomes positively charged and what is the value of induced potential difference between the two ends  [MP PET 1996]

A. End A, \[3\times {{10}^{-3}}\,mV\]  
B. End A, 3 mV
C. \[9\times {{10}^{-9}}\] 
D. End B, 3 mV
Answer» C. \[9\times {{10}^{-9}}\] 


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