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  1. “On flowing current in a conducting wire the magnetic field is produced around it”.
  2. The wheel of a car is rotating at the rate of 1200 rev/min. On pressing
  3. The total energy of an electron in the first excited state of hydrogen atom
  4. Two stones of masses m and 2m are whirled in horizontal circles, the heavier one
  5. Two resistances 3Ω and 6Ω are connected in parallel