The figure shows a planar conductor located in a magnetic field directed inward,normal to the plane of the figure. The magnetic field starts diminishing. Then the induced current:

  • A
    at point $P$ is clockwise
  • B
    at point $R$ is zero
  • C
    at point $Q$ is clockwise
  • D
    All of the above

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Column $I$ gives certain situations in which a straight metallic wire of resistance $R$ is used and Column $II$ gives some resulting effects. Match the statements in Column $I$ with the statements in Column $II$.
Column $I$Column $II$
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$(C)$ The wire is placed in a constant electric field that has a direction along the length of the wire$(r)$ $A$ constant potential difference develops between the ends of the wire
$(D)$ $A$ battery of constant emf is connected to the ends of the wire$(s)$ Charges of constant magnitude appear at the ends of the wire

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