Physics - Electrostatics

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Question - 1

Two wires of different materials, each 2m long and of diameter 2mm, are joined in series to form a composite wire. What force will produce a total extension of 0.9 mm (Y1=2x1011pa & Y2= 6x1011 Pa)

  • A 282.6 N
  • B 212 N
  • C 19.8N
  • D 382.6 N