$A$ conducting rod $PQ$ of length $L = 1.0\, m$ is moving with a uniform speed $v = 2\, m/s$ 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 the figure. Then

  • A
    $q_A = + 80\,\mu C$ and $q_B = - 80\,\mu C$
  • B
    $q_A = - 80\,\mu C$ and $q_B = + 80\,\mu C$
  • C
    $q_A = 0 = q_B$
  • D
    Charge stored in the capacitor increases exponentially with time

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