(a)[2]
On Fig. 10.2, link the metal of the metal tip and the solder to suitable melting points with lines.
(b(i))[2]
Calculate the electrical energy delivered to the heating element during the first $10\,\text{s}$.
(b(ii))[3]
Calculate the thermal energy (heat) gained by the metal tip during the first $10\,\text{s}$.
(c(i))[2]
Describe, in terms of free electrons, how heat is transferred through the metal tip.
(c(ii))[2]
Explain how convection takes place in the air.
(d(i))[2]
In the space below, draw a labelled diagram of a thermocouple. Place a letter H on the part of the thermocouple that is put on the metal tip.
(d(ii))[2]
State two reasons why a thermocouple thermometer is appropriate for measuring how the temperature of the metal tip varies during the first $10\,\text{s}$.