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Question 22

How long will it take to heat 3kg of water from 28oC to 88oC in an electric kettle taking 6a from a 220V supply? [specific heat capacity of water = 4180 J kg-1K-1]

  • A.120s
  • B.570s
  • C.600s
  • D.836s
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
2006
Question no.
#22
Type
Objective
Previous · Q21The silvered surface in a vacuum flask reduces heat loos due to Next · Q23 The amount of energy required to change a kilogram of ice in water without a…

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