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Physics Medium NTS Uploaded: 06 Aug 2026

Which unit measures the rate of energy transfer in an electrical circuit?

  • A Volt
  • B Watt
  • C Ampere
  • D Ohm
Correct Answer: Option B — Watt
Explanation:
The watt is the unit measuring the rate of energy transfer or power consumption within an electrical circuit, calculated by multiplying voltage and current. It quantifies how quickly electrical devices use or generate energy.
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