$A$ constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
  • A
    both the length and the radius of the wire are halved.
  • B
    both the length and the radius of the wire are doubled
  • C
    the radius of the wire is doubled
  • D
    the length of the wire is doubled
Medium
art

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