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How are the two half-cells in a galvanic cell connected externally?

Options

  1. ABy a metallic wire through a voltmeter and a switch.
  2. BBy a salt bridge.
  3. CBy a double vertical line.
  4. DBy a direct chemical reaction.

Correct answer

A. By a metallic wire through a voltmeter and a switch.

Step-by-step solution

The two half-cells in a galvanic cell are connected externally by a metallic wire through a voltmeter and a switch.

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