Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 replaced by a shunt resistance.
 short circuited.
 open circuited.
 replaced by a series resistance.

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Electric Circuits
Pure metal generally have

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

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