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Question 37

An immersion heater is rated 120W. How long does it take the heater to raise the temperature of 1.2kg of water by 15oC. (Assuming heat lost to the surrounding is negligible. Specific heat capacity of water = 4200 Jkg-1K-1C)

  • A.65.0 minutes
  • B.60.0 minutes
  • C.52.5 minutes
  • D.10.5 minutes
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
2000
Question no.
#37
Type
Objective
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