At school I remember being very impressed when I learned that mountaineers climbing Everest couldn't make decent tea because the water never got hot enough ------- !
Broadly speaking, the temperature at which water boils varies with the atmospheric pressure, and the atmospheric pressure varies inversely with the height above sea level. This means that water at 900 m above sea level boils at a lower temperature than water at 9 m above sea level - so your egg would take longer to cook up there! You'd need the maths to work things out more precisely, but this might be as much as you need to know? Hope it gets you started, anyway.
cooking, electricity/heat
electricity
Electricity is a viable source of heat element for cooking. When electrons are mixed with energy, they create friction hence heat to cook with.
electricity
According to ConsumerEnergyCenter.org, about 58 percent of American households cook with electricity, but gas cooking is making a steady comeback, The electronic stovetops are much more convenient and saves a lot more electricity.
..... How about cooking with electricity? It was an advert for electric ovens!
Gas is twice as fast as electricity
electricity, heating and cooking (i think)
Electricity, Gas, Propane or Coal
Cooking foil is like regular aluminum foil. In summary, cooking foil and tin foil alike are good conductors of heat AND electricity.
Transportation, electricity generation, heating, and cooking.
for heating and cooking, gaseous fuel, and to create electricity