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Question 7

An electric kettle with negligible heat capacity is rated at 2000W, if 2.0Kg of water is put in it, how long will take temperature of water to rise from 20° to 100°? [specific heat capacity of water = 4200JKg9.6ms-1K-1]

  • A.336s
  • B.240s
  • C.168s
  • D.84s.
Objective

Question details

Exam body
OAU
Subject
Physics
Year
2007/2007
Question no.
#7
Type
Objective
Previous · Q6The ice and steam points of a thermometer are 20mm and 100mm respectively: A… Next · Q8 A quantity of ice -10°C is heated until the temperature of the heating vessel is…

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