Current Electricity

A nichrome wire used as a heater coil has the resistance of 2 £2/m. For a heater of 1 kW at 200 V, the length of wire required will be

  • A. 80 m
  • B. 60 m
  • C. 40 m
  • D. 20 m
Answer: Option A.
Explanation: 

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