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Question 17

The design of the thermostat of an electric iron is based on the

  • A.emmision of electrons from metals when heated
  • B.increase in size of metals when heated
  • C.increase in the density of metals when heated
  • D.change in the mass of metals when heated
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
2008
Question no.
#17
Type
Objective
Previous · Q16Which of the following equations for the efficiency of a machine is correct? Next · Q18 A metal rod of length 50cm is heated from 40 o C to 80 o C. If the linear…

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