Explain the relationship between watt and volt

Watts is the SI unit of Power (P). Volts is the SI unit of potential difference and EMF.

Solution

  • Volt is the measure of potential difference within two terminal of a conducting wire.
  • Watt is the rate at which electrical work is performed when a current of one ampere flows across the potential difference of one volt.

Formula

One formula for watts is:
W = Volts × Current

The relation between watt and volt are proportionate. That is watt is directly proportional to volt. Which implies that-

  • When the electric power in terms of watt increases, the electric potential in terms of volt also increases keeping electric current constant.
  • When the electric power in terms of watt decreases, the electric potential in terms of volt also decreases keeping electric current constant.

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