Electric Circuits
Two equal resistors R connected in series across a voltage source V dissipate power P. What would be the power dissipated in the same resistors when they are connected in parallel across the same voltage source?

 2P.
 4P.
  P.
 16P.

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Electric Circuits
Pure metal generally have

  low conductivity and high temperature coefficient.
  high conductivity and low temperature coefficient.
  low conductivity and zero temperature coefficient.
  high conductivity and large temperature coefficient.

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