Physics-
General
Easy

Question

A conducting rod PQ of length L = 1.0 m is moving with a uniform speed v = 20 m/s in a uniform magnetic field B = 4.0 T directed into the paper. A capacitor of capacity C = 10 mu F is connected as shown in figure. Then

  1. q subscript A end subscript equals plus 800 mu C text  and  end text q subscript B end subscript equals negative 800 mu C    
  2. q subscript A end subscript equals negative 800 mu C text  and  end text q subscript B end subscript equals plus 800 mu C    
  3. q subscript A end subscript equals 0 equals q subscript B end subscript    
  4. charged stored in the capacitor increases exponentially with time    

The correct answer is: q subscript A end subscript equals plus 800 mu C text  and  end text q subscript B end subscript equals negative 800 mu C

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